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| height =
| height =
<!-- Ranged weapon specifications -->
<!-- Ranged weapon specifications -->
| cartridge = [[5.56×45mm NATO]]<br />[[.300 AAC Blackout]]
| cartridge = [[5.56×45mm NATO]]<br />[[.300 AAC Blackout]]<br />[[7.62×39mm]]
| action = [[Gas-operated reloading#Short-stroke fixed|Short-stroke gas-operated piston]], [[rotating bolt]]
| action = [[Gas-operated reloading#Short-stroke fixed|Short-stroke gas-operated piston]], [[rotating bolt]]
| velocity = MCX Carbine 5.56×45mm NATO: 3,000 ft/s (914 m/s)<ref name = test>{{Cite web|url=https://www.militaryfactory.com/smallarms/detail.asp?smallarms_id=1140|title=SIG MCX |publisher=Military Factory |language=en|access-date=January 5, 2019}}</ref>
| velocity = MCX Carbine 5.56×45mm NATO: 3,000 ft/s (914 m/s)<ref name = test>{{Cite web|url=https://www.militaryfactory.com/smallarms/detail.asp?smallarms_id=1140|title=SIG MCX |publisher=Military Factory |language=en|access-date=January 5, 2019}}</ref>
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}}


The '''SIG MCX''' is a family of [[firearm]]s designed and manufactured by [[SIG Sauer]], produced in both [[selective fire]] and [[semi-automatic firearm|semi-automatic only]] models, and features a [[gas-operated reloading#Short-stroke fixed|short-stroke gas piston]] system, which is inherited from the earlier [[SIG MPX]] [[submachine gun]]. The MCX is available in [[rifle]], [[carbine]], [[short-barreled rifle]], and [[pistol]] configurations (the latter configuration generally conforming to the definition of a compact [[carbine]] but for taking a [[Stock (firearms)#For handguns|pistol brace]] rather than a [[buttstock]]).<ref name="Sig Sauer 2017 Catalog">{{cite web|title=2017 SIG SAUER Catalog|url=http://html5.dcatalog.com/?docid=f2593e6b-bc3c-408a-94f0-a6fe00f6b421#page=42|website=dcatalog.com|publisher=SIG Sauer|access-date=26 February 2017}}</ref>
The '''SIG MCX''' is a family of [[firearm]]s designed and manufactured by [[SIG Sauer]], produced in both [[selective fire]] and [[semi-automatic firearm|semi-automatic only]] models, and features a [[gas-operated reloading#Short-stroke fixed|short-stroke gas piston]] system, which is inherited from the earlier [[SIG MPX]] [[submachine gun]]. The MCX is available in [[rifle]], [[carbine]], [[short-barreled rifle]], and [[pistol]] configurations (the latter configuration generally conforming to the definition of a compact [[carbine]] but for taking a [[Stock (firearms)#For handguns|pistol brace]] rather than a [[buttstock]]).<ref name="Sig Sauer 2017 Catalog">{{cite web|title=2017 SIG SAUER Catalog|url=http://html5.dcatalog.com/?docid=f2593e6b-bc3c-408a-94f0-a6fe00f6b421#page=42|website=dcatalog.com|publisher=SIG Sauer|access-date=26 February 2017}}{{dead link|date=May 2024}}</ref>


The MCX was further developed into the [[SIG MCX Spear]], which was adopted in its [[.277 Fury]] chambering as the [[XM7]] by the [[U.S. Army]] in 2022.
The MCX was further developed into the [[SIG MCX Spear]], which was adopted in its [[.277 Fury]] chambering as the [[XM7]] by the [[U.S. Army]] in 2022.


== History ==
== History ==
The SIG MCX was first introduced at [[SHOT Show]] 2015. The rifle was originally designed by SIG USA, the subsidiary of SIG Sauer based in [[New Hampshire]].<ref name=VPC/> In 2016, SIG recalled some of the rifles that had the first-generation [[bolt (firearms)|bolt carrier group]].<ref>{{cite web|url=https://sofrep.com/70713/sig-sauer-mcx-mandatory-recall/|title=Sig Sauer MCX Mandatory Recall|date=24 December 2014|website=SOFREP News}}</ref> A SIG MCX was used in the 2016 [[Orlando nightclub shooting]], which at the time was the deadliest [[Mass shootings in the United States|mass shooting in U.S. history]], now second to the [[2017 Las Vegas shooting]].<ref>{{Cite news|url=https://www.washingtonpost.com/news/checkpoint/wp/2016/06/14/the-gun-the-orlando-shooter-used-was-not-an-ar-15-that-doesnt-change-much/|title=The gun the Orlando shooter used was a Sig Sauer MCX, not an AR-15. That doesn't change much.|last=Gibbons-Neff|first=Thomas|newspaper=[[The Washington Post]]|location=[[Washington, D.C.]]|access-date=2017-07-23}}</ref>
The SIG MCX was first introduced at [[SHOT Show]] 2015. The rifle was originally designed by SIG USA, the subsidiary of SIG Sauer based in [[New Hampshire]].<ref name=VPC/> In 2016, SIG recalled some of the rifles that had the first-generation [[bolt (firearms)|bolt carrier group]].<ref>{{cite web|url=https://sofrep.com/70713/sig-sauer-mcx-mandatory-recall/|title=Sig Sauer MCX Mandatory Recall|date=24 December 2014|website=SOFREP News}}</ref> It has been used by various SWAT teams and militaries, including the Ukrainian Armed Forces during the Russian Invasion of Ukraine. A SIG MCX was used in the 2016 [[Orlando nightclub shooting]], which at the time was the deadliest [[Mass shootings in the United States|mass shooting in U.S. history]], now second to the [[2017 Las Vegas shooting]].<ref>{{Cite news|url=https://www.washingtonpost.com/news/checkpoint/wp/2016/06/14/the-gun-the-orlando-shooter-used-was-not-an-ar-15-that-doesnt-change-much/|title=The gun the Orlando shooter used was a Sig Sauer MCX, not an AR-15. That doesn't change much.|last=Gibbons-Neff|first=Thomas|newspaper=[[The Washington Post]]|location=[[Washington, D.C.]]|access-date=2017-07-23}}</ref>


==Design==
==Design==
The SIG MCX series features a [[gas-operated reloading#Short-stroke fixed|short-stroke gas piston]]{{citation needed|date=August 2022}}<!-- Controversy with disassembly. --> system to reduce recoil and improve the reliability of the weapon; this was based on the design of the earlier [[SIG MPX]].<ref name="GA">{{cite web|title=First Look: SIG Sauer MCX |website=Guns & Ammo |url=http://www.gunsandammo.com/first-look/sig-sauer-mcx/ |archive-url=https://web.archive.org/web/20190224001742/http://www.gunsandammo.com/editorial/sig-sauer-mcx/249535 |archive-date= 24 February 2019 |date=January 13, 2015}}</ref> The MCX features a system that allows for conversion between [[5.56×45mm NATO]], [[.300 AAC Blackout]], and [[7.62×39mm]] ammunition, using standard 5.56&nbsp;mm [[STANAG magazine]]s for 5.56×45mm NATO and .300 AAC Blackout, and specially designed STANAG-compatible magazines for 7.62×39mm.<ref name="GA"/><ref name="TTAG">{{cite web|url=http://www.thetruthaboutguns.com/2015/10/foghorn/gun-review-sig-sauer-mcx/|title=Gun Review: SIG SAUER MCX|date=October 17, 2015|website=The Truth About Guns|access-date=June 23, 2016|first=Nick|last=Leghorn}}</ref> The MCX is designed to deliver optimal performance with .300 AAC Blackout and an optional [[suppressor]].<ref>{{cite news|url=https://www.americanrifleman.org/articles/2015/1/20/sig-sauer-mcx-carbine/|title=SIG Sauer MCX Carbine|website=American Rifleman}}</ref>
The SIG MCX series features a [[gas-operated reloading#Short-stroke fixed|short-stroke gas piston]]<ref>{{cite web|url=https://www.thefirearmblog.com/blog/2022/04/30/mcx-virtus-piston/|title=SILENCER SATURDAY #226: The MCX Virtus Piston System|website=The Firearm Blog|date=April 30, 2022|access-date=April 30, 2022}}</ref> system to reduce recoil and improve the reliability of the weapon;<ref>{{cite web|url=https://nationalinterest.org/blog/buzz/sig-sauer-mcx-virtus-patrol-better-ar-15-198313|title=Is the Sig Sauer MCX Virtus Patrol Better Than an AR-15?|website=The National Interest|date=December 21, 2021|access-date=December 21, 2021}}</ref> this was based on the design of the earlier [[SIG MPX]].<ref name="GA">{{cite web|title=First Look: SIG Sauer MCX |website=Guns & Ammo |url=http://www.gunsandammo.com/first-look/sig-sauer-mcx/ |archive-url=https://web.archive.org/web/20190224001742/http://www.gunsandammo.com/editorial/sig-sauer-mcx/249535 |archive-date= 24 February 2019 |date=January 13, 2015}}</ref> The MCX features a system that allows for conversion between [[5.56×45mm NATO]], [[.300 AAC Blackout]], and [[7.62×39mm]] ammunition, using standard 5.56&nbsp;mm [[STANAG magazine]]s for 5.56×45mm NATO and .300 AAC Blackout, and specially designed STANAG-compatible magazines for 7.62×39mm.<ref name="GA"/> The MCX is designed to deliver optimal performance with .300 AAC Blackout and an optional [[suppressor]].<ref>{{cite news|url=https://www.americanrifleman.org/articles/2015/1/20/sig-sauer-mcx-carbine/|title=SIG Sauer MCX Carbine|website=American Rifleman}}</ref>


The barrel's profile is tapered at the crown to allow the installation of muzzle devices and direct-thread sound suppressors without the use of washers that degrade performance and allows the devices to self-center on installation. The barrel can be changed in a matter of seconds to another length or a different caliber. Additionally the barrels are nitride coated for corrosion resistance.<ref name="Merrill2015">{{cite web|url=http://www.recoilweb.com/recoil-exclusive-breakdown-of-the-sig-mcx-56367.html|first=David|last=Merrill|publisher=Recoil|title=RECOIL Exclusive: Breakdown of the Sig MCX|date=16 January 2015}}</ref><ref name="warden">{{cite web|title=Full Review: SIG Sauer MCX|first=Drew|last=Warden|date=October 7, 2015|url=http://www.gundigest.com/tactical-gear/full-review-sig-sauer-mcx|publisher=Gun Digest}}</ref> It features hardened steel wear points.<ref name="GA"/><ref name="Merrill2015"/>
The barrel's profile is tapered at the crown to allow the installation of muzzle devices and direct-thread sound suppressors without the use of washers that degrade performance and allows the devices to self-center on installation. The barrel can be changed in a matter of seconds to another length or a different caliber. Additionally the barrels are nitride coated for corrosion resistance.<ref name="Merrill2015">{{cite web|url=http://www.recoilweb.com/recoil-exclusive-breakdown-of-the-sig-mcx-56367.html|first=David|last=Merrill|publisher=Recoil|title=RECOIL Exclusive: Breakdown of the Sig MCX|date=16 January 2015}}</ref><ref name="warden">{{cite web|title=Full Review: SIG Sauer MCX|first=Drew|last=Warden|date=October 7, 2015|url=http://www.gundigest.com/tactical-gear/full-review-sig-sauer-mcx|publisher=Gun Digest}}</ref> It features hardened steel wear points.<ref name="GA"/><ref name="Merrill2015"/>


First generation MCX variants have a forend made of aluminum with a [[KeyMod]] system to add accessories while second generation MCX variants have an [[M-LOK]] handguard. Controls are mostly ambidextrous including the charging handle but not the bolt release. Sig produces four stock configurations are available for the MCX carbine.<ref name="GA"/><ref name="warden"/> The overall layout of the two rifles is similar.<ref>{{cite web|url=http://www.tactical-life.com/firearms/review-sig-sauer-mcx/#mcx-twa15-lead|title=Sig Sauer's MCX Rifle: An Elite Modular Weapons System|date=30 June 2015|first=Sean|last=Utley|publisher=Tactical Life}}</ref> SIG designed the upper [[Receiver (firearms)|receiver]] to be compatible with standard [[AR-15]] and [[M16 rifle|M16]] lower receivers<ref name="GA"/><ref name="Merrill2015"/> with the help of an adapter.<ref>{{Cite web|url=http://soldiersystems.net/2015/02/09/ar-lower-receiver-extension-adapter-for-sig-mcx-upper/|title=AR Lower Receiver Extension Adapter for SIG MCX Upper - Soldier Systems Daily|access-date=2017-06-10}}</ref>
First generation MCX variants have a forend made of aluminum with a [[KeyMod]] system to add accessories while second generation MCX variants have an [[M-LOK]] handguard. Controls are mostly ambidextrous including the charging handle but not the bolt release. Sig produces four stock configurations are available for the MCX carbine.<ref name="GA"/><ref name="warden"/> The overall layout of the two rifles is similar.<ref>{{cite web|url=http://www.tactical-life.com/firearms/review-sig-sauer-mcx/#mcx-twa15-lead|title=Sig Sauer's MCX Rifle: An Elite Modular Weapons System|date=30 June 2015|first=Sean|last=Utley|publisher=Tactical Life}}</ref> SIG designed the upper [[Receiver (firearms)|receiver]] to be compatible with standard [[AR-15]] and [[M16 rifle|M16]] lower receivers<ref name="GA"/><ref name="Merrill2015"/> with the help of an adapter.<ref>{{Cite web|url=http://soldiersystems.net/2015/02/09/ar-lower-receiver-extension-adapter-for-sig-mcx-upper/|title=AR Lower Receiver Extension Adapter for SIG MCX Upper - Soldier Systems Daily|date=9 February 2015 |access-date=2017-06-10}}</ref>


An integrally suppressed upper receiver group based on the MCX was selected by [[United States Special Operations Command|USSOCOM]] for the SURG (Suppressed Upper Receiver Group) contract in July 2018. These suppressed uppers would be paired with existing M4A1 lowers in SOCOM inventory.<ref name="SSD SURG">{{cite web |title=USSOCOM Awards SIG SAUER $48 Mil for Suppressed Upper Receiver Group |url=https://soldiersystems.net/2018/07/29/ussocom-awards-sig-sauer-48-mil-for-suppressed-upper-receiver-group/ |website=Soldier Systems Daily |access-date=24 May 2022 |archive-url=https://web.archive.org/web/20210419063506/https://soldiersystems.net/2018/07/29/ussocom-awards-sig-sauer-48-mil-for-suppressed-upper-receiver-group/ |archive-date=19 April 2021 |date=29 July 2018}}</ref><ref name="SSD SURG look">{{cite web |title=First Look – USSOCOM's New Suppressed Upper Receiver Group (SURG) from SIG SAUER |url=https://soldiersystems.net/2018/08/02/first-look-socoms-new-suppressed-upper-receiver-group-from-sig-sauer/ |website=Soldier System Daily |access-date=24 May 2022 |archive-url=https://web.archive.org/web/20211230170305/https://soldiersystems.net/2018/08/02/first-look-socoms-new-suppressed-upper-receiver-group-from-sig-sauer/ |archive-date=30 December 2021 |date=2 August 2018}}</ref>
An integrally suppressed upper receiver group based on the MCX was selected by [[United States Special Operations Command|USSOCOM]] for the SURG (Suppressed Upper Receiver Group) contract in July 2018. These suppressed uppers would be paired with existing M4A1 lowers in SOCOM inventory.<ref name="SSD SURG">{{cite web |title=USSOCOM Awards SIG SAUER $48 Mil for Suppressed Upper Receiver Group |url=https://soldiersystems.net/2018/07/29/ussocom-awards-sig-sauer-48-mil-for-suppressed-upper-receiver-group/ |website=Soldier Systems Daily |access-date=24 May 2022 |archive-url=https://web.archive.org/web/20210419063506/https://soldiersystems.net/2018/07/29/ussocom-awards-sig-sauer-48-mil-for-suppressed-upper-receiver-group/ |archive-date=19 April 2021 |date=29 July 2018}}</ref><ref name="SSD SURG look">{{cite web |title=First Look – USSOCOM's New Suppressed Upper Receiver Group (SURG) from SIG SAUER |url=https://soldiersystems.net/2018/08/02/first-look-socoms-new-suppressed-upper-receiver-group-from-sig-sauer/ |website=Soldier System Daily |access-date=24 May 2022 |archive-url=https://web.archive.org/web/20211230170305/https://soldiersystems.net/2018/08/02/first-look-socoms-new-suppressed-upper-receiver-group-from-sig-sauer/ |archive-date=30 December 2021 |date=2 August 2018}}</ref>
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* The '''SIG MCX PATROL''' is the standard configuration of the rifle with a 406&nbsp;mm (16&nbsp;in) barrel.
* The '''SIG MCX PATROL''' is the standard configuration of the rifle with a 406&nbsp;mm (16&nbsp;in) barrel.
* The '''SIG MCX SBR''' is a [[short-barreled rifle]] configuration of the rifle with a 229&nbsp;mm (9&nbsp;in) barrel. (''Under U.S. federal law, rifles with barrels shorter than 16 inches are [[Title II weapons]], which are subject to federal restrictions, as well as being regulated by state laws'').<ref name="GA" />
* The '''SIG MCX SBR''' is a [[short-barreled rifle]] configuration of the rifle with a 229&nbsp;mm (9&nbsp;in) barrel. (''Under U.S. federal law, rifles with barrels shorter than 16 inches are [[Title II weapons]], which are subject to federal restrictions, as well as being regulated by state laws'').<ref name="GA" />
* The '''SIG MCX Pistol''' is the [[Semi-automatic pistol|pistol]] configuration of the rifle with a 229&nbsp;mm (9&nbsp;in) barrel or 292&nbsp;mm (11.5&nbsp;in) barrel and comes either with the SIG Sauer SBX (pistol stabilizing brace) or SIG Sauer PCB (pistol pivoting contour folding brace). (''This configuration fits the U.S. legal definition of a "handgun", in that it is only designed to be fired with a single point of contact with the shooter's body,<ref>Federal Gun Control Act 1968 [https://www.law.cornell.edu/uscode/text/18/921 18 U.S. Code § 921 - Definitions], Cornell.edu, "(29) The term “handgun” means— (A) a firearm which has a short stock and is designed to be held and fired by the use of a single hand"</ref> though it is really a compact carbine rifle, as it fires an intermediate round. The [[Bureau of Alcohol, Tobacco, Firearms and Explosives|BATFE]] previously warned users that shouldering a weapon fitted with the SIG SBX, or a similar forearm brace, and not registered as a short-barreled rifle, constitutes the making of a short-barreled rifle, which is a [[Title II weapons|Title II weapon]].<ref>{{cite web|url=http://www.grandviewoutdoors.com/grand-view-outdoors/the-rise-and-fall-of-the-sb-15-sig-brace/|title=The Rise And Fall Of The SB-15 'Sig Brace'|date=24 March 2015|website=Grand View Outdoors}}</ref> However, as of April 2017, this is no longer the case'').<ref>{{cite web|url=https://www.nraila.org/articles/20170425/brace-yourself-atf-reconsiders-obama-era-policy-on-stabilizing-braces|title=Brace Yourself: ATF Reconsiders Obama-Era Policy on Stabilizing Braces|date=25 April 2017|website=National Rifle Association Institute for Legislative Action}}</ref>
* The '''SIG MCX Pistol''' is the [[Semi-automatic pistol|pistol]] configuration of the rifle with a 229&nbsp;mm (9&nbsp;in) barrel or 292&nbsp;mm (11.5&nbsp;in) barrel and comes either with the SIG Sauer SBX (pistol stabilizing brace) or SIG Sauer PCB (pistol pivoting contour folding brace). (''This configuration fits the U.S. legal definition of a "handgun", in that it is only designed to be fired with a single point of contact with the shooter's body,<ref>Federal Gun Control Act 1968 [https://www.law.cornell.edu/uscode/text/18/921 18 U.S. Code § 921 - Definitions], Cornell.edu, "(29) The term “handgun” means— (A) a firearm which has a short stock and is designed to be held and fired by the use of a single hand"</ref> though it is really a compact carbine rifle, as it fires an intermediate round. The [[Bureau of Alcohol, Tobacco, Firearms and Explosives|BATFE]] previously warned users that shouldering a weapon fitted with the SIG SBX, or a similar forearm brace, and not registered as a short-barreled rifle, constitutes the making of a short-barreled rifle, which is a [[Title II weapons|Title II weapon]].<ref>{{cite web|url=http://www.grandviewoutdoors.com/grand-view-outdoors/the-rise-and-fall-of-the-sb-15-sig-brace/|title=The Rise And Fall Of The SB-15 'Sig Brace'|date=24 March 2015|website=Grand View Outdoors|access-date=2 August 2016|archive-date=25 October 2016|archive-url=https://web.archive.org/web/20161025092346/http://www.grandviewoutdoors.com/grand-view-outdoors/the-rise-and-fall-of-the-sb-15-sig-brace/|url-status=dead}}</ref> However, as of April 2017, this is no longer the case'').<ref>{{cite web|url=https://www.nraila.org/articles/20170425/brace-yourself-atf-reconsiders-obama-era-policy-on-stabilizing-braces|title=Brace Yourself: ATF Reconsiders Obama-Era Policy on Stabilizing Braces|date=25 April 2017|website=National Rifle Association Institute for Legislative Action}}</ref>
* The '''SIG''' '''MCX Low Visibility Assault Weapon (LVAW)''' is a short-barreled, suppressed, select-fire variant available only to military and law enforcement agencies. It is nicknamed the "[[Black mamba|Black Mamba]]".<ref>{{cite web|url=http://www.militarytimes.com/story/military/gearscout/2014/04/17/on-the-range-with-sig-sauers-mcx-black-mamba/32150065/|title=On the range with Sig Sauer's MCX 'Black Mamba'|date=17 April 2014|website=Military Times}}</ref><ref name="Neville2016">{{cite book|url=https://books.google.com/books?id=v1yqCwAAQBAJ&pg=PA142|title=Guns of Special Forces 2001 – 2015|last=Neville|first=Leigh|date=31 March 2016|publisher=Casemate Publishing|isbn=978-1-4738-8102-0|pages=142–143}}</ref>
* The '''SIG''' '''MCX Low Visibility Assault Weapon (LVAW)''' is a short-barreled, suppressed, select-fire variant available only to military and law enforcement agencies. It is nicknamed the "[[Black mamba|Black Mamba]]".<ref>{{cite web|url=http://www.militarytimes.com/story/military/gearscout/2014/04/17/on-the-range-with-sig-sauers-mcx-black-mamba/32150065/|title=On the range with Sig Sauer's MCX 'Black Mamba'|date=17 April 2014|website=Military Times}}</ref><ref name="Neville2016">{{cite book|url=https://books.google.com/books?id=v1yqCwAAQBAJ&pg=PA142|title=Guns of Special Forces 2001 – 2015|last=Neville|first=Leigh|date=31 March 2016|publisher=Casemate Publishing|isbn=978-1-4738-8102-0|pages=142–143}}</ref>


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The SIG MCX VIRTUS is the second generation of the SIG MCX series and was introduced in 2017.
The SIG MCX VIRTUS is the second generation of the SIG MCX series and was introduced in 2017.


* The '''SIG MCX VIRTUS Patrol''' is the standard configuration rifle that features a 406&nbsp;mm (16&nbsp;in) barrel, a 1:7 inch twist, a custom Sig Matchlite Duo Trigger for improved accuracy, a folding and collapsing 5-position stock, four handguard lengths to choose from, interchangeable barrels and a special internal recoil system.<ref name="11.5">{{cite web|url=https://www.gunsamerica.com/digest/ready-mission-sig-sauer-mcx-virtus-full-review/|title=Ready for Any Mission: SIG Sauer MCX Virtus — Full Review|last=Martin|first=Clay|website=gunsamerica.com|date=3 November 2017|language=en|access-date=January 5, 2019}}</ref><ref>{{cite web|url=https://www.sigsauer.com/store/sig-mcx-virtus-patrol.html|title=Sig MCX VIRTUS Patrol|website=sigsauer.com|language=en|access-date=January 5, 2019}}</ref>
* The '''SIG MCX VIRTUS Patrol''' is the standard configuration rifle that features a 406&nbsp;mm (16&nbsp;in) barrel, a 1:7 inch twist, a custom SIG Matchlite Duo Trigger for improved accuracy, a folding and collapsing 5-position stock, four handguard lengths to choose from, interchangeable barrels and a special internal recoil system.<ref name="11.5">{{cite web|url=https://www.gunsamerica.com/digest/ready-mission-sig-sauer-mcx-virtus-full-review/|title=Ready for Any Mission: SIG Sauer MCX Virtus — Full Review|last=Martin|first=Clay|website=gunsamerica.com|date=3 November 2017|language=en|access-date=January 5, 2019}}</ref><ref>{{cite web|url=https://www.sigsauer.com/store/sig-mcx-virtus-patrol.html|title=Sig MCX VIRTUS Patrol|website=sigsauer.com|language=en|access-date=January 5, 2019}}</ref>
* The '''SIG MCX VIRTUS SBR''' is the short-barreled rifle configuration of the MCX VIRTUS. It features a 292&nbsp;mm (11.5&nbsp;in) barrel for the 5.56×45mm NATO caliber, and a 140&nbsp;mm (5.5&nbsp;in) barrel and 229&nbsp;mm (9&nbsp;in) barrel for the .300 AAC Blackout caliber.<ref name="test" /><ref name="11.5true">{{cite web|url=https://www.sigsauer.com/store/sig-mcx-virtus-sbr.html|title=Sig MCX VIRTUS SBR|website=sigsauer.com|language=en|access-date=January 5, 2019}}</ref>
* The '''SIG MCX VIRTUS SBR''' is the short-barreled rifle configuration of the MCX VIRTUS. It features a 292&nbsp;mm (11.5&nbsp;in) barrel for the 5.56×45mm NATO caliber, and a 140&nbsp;mm (5.5&nbsp;in) barrel and 229&nbsp;mm (9&nbsp;in) barrel for the .300 AAC Blackout caliber.<ref name="test" /><ref name="11.5true">{{cite web|url=https://www.sigsauer.com/store/sig-mcx-virtus-sbr.html|title=Sig MCX VIRTUS SBR|website=sigsauer.com|language=en|access-date=January 5, 2019}}</ref>
* The '''SIG MCX VIRTUS Pistol''' is the pistol configuration of the MCX VIRTUS which features an SBX stabilizer brace. It features an 292&nbsp;mm (11.5&nbsp;in) barrel for the 5.56×45mm NATO caliber, and a 229&nbsp;mm (9&nbsp;in) barrel for the .300 AAC Blackout caliber.<ref name="test" /><ref>{{cite web|url=https://www.sigsauer.com/store/sig-mcx-virtus-pistol.html|title=Sig MCX VIRTUS Pistol|website=sigsauer.com|language=en|access-date=January 5, 2019}}</ref>
* The '''SIG MCX VIRTUS Pistol''' is the pistol configuration of the MCX VIRTUS which features an SBX stabilizer brace. It features an 292&nbsp;mm (11.5&nbsp;in) barrel for the 5.56×45mm NATO caliber, and a 229&nbsp;mm (9&nbsp;in) barrel for the .300 AAC Blackout caliber.<ref name="test" /><ref>{{cite web|url=https://www.sigsauer.com/store/sig-mcx-virtus-pistol.html|title=Sig MCX VIRTUS Pistol|website=sigsauer.com|language=en|access-date=January 5, 2019}}</ref>
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=== SIG MCX-SPEAR LT===
=== SIG MCX-SPEAR LT===
The SIG MCX-SPEAR LT is the third generation of the SIG MCX, introduced in 2022. Intended to serve as a [[carbine]], it features a {{convert|9|in|mm|adj=on}}, {{convert|11.5|in|mm|adj=on}} or {{convert|16|in|mm|adj=on}} barrel and a [[Picatinny rail]] tail interface for attaching either a [[buttstock]] or a pistol brace. It is available in [[5.56 mm NATO]], [[.300 Blackout]] and [[7.62x39mm]].<ref>{{Cite web | url=https://www.sigsauer.com/mcx-spear-lt.html| title=Sig MCX-SPERA LT| website=[[SIG Sauer]] }}</ref><ref>{{Cite web |date=2022-09-18 |title=Introducing the new Sig MCX-SPEAR LT |url=https://www.thefirearmblog.com/blog/2022/09/18/sig-mcx-spear-lt/ |website=[[The Firearm Blog]]}}</ref>
The SIG MCX-SPEAR LT is the third generation of the SIG MCX, introduced in 2022. With the release of the MCX LT, SIG also designed a new, padded, side-folding stock with an FDE finish option to match the rifles, which civilian versions of the rifle variant are sold with. While the civilian variant is referred to as the "SPEAR LT", referencing the SPEAR from which it derives many of its improvements over the Virtus line, SIG Sauer refers to the military versions as simply the "MCX LT" or "MCX Lightweight".<ref>{{cite web |title=Defense Strategies Catalog |url=https://www.sigsauer.com/dsg |website=SIG Sauer |access-date=7 August 2024}}</ref>

The defining features of the LT are its new, lightened, handguard and barrel design (borrowed from the SPEAR) ambidextrous bolt catch and release, proprietary SL muzzle device to allow for the use of SIG SAUER's quick detaching SLX and SLH suppressors, and new [[coyote brown]] coating (black options are still available for purchase). Intended to serve as a [[carbine]], the civilian model features {{convert|11.5|in|mm|adj=on}} or {{convert|16|in|mm|adj=on}} barrel and a [[Picatinny rail]] tail interface for attaching either a [[buttstock]] or a pistol brace. The military model features both of these options, with the addition of {{convert|14.5|in|mm|adj=on}} and {{convert|9|in|mm|adj=on}} barrels, as well as a custom two-stage match grade select-fire trigger group. It is available in [[5.56 mm NATO]], [[.300 Blackout]] and a [[7.62x39mm]] version with custom 28 round AR-pattern magazines.<ref>{{Cite web | url=https://www.sigsauer.com/mcx-spear-lt.html| title=Sig MCX-SPEAR LT| website=[[SIG Sauer]] }}</ref><ref>{{Cite web |date=2022-09-18 |title=Introducing the new Sig MCX-SPEAR LT |url=https://www.thefirearmblog.com/blog/2022/09/18/sig-mcx-spear-lt/ |website=The Firearm Blog}}</ref>


== Derivatives ==
== Derivatives ==


=== SIG MCX-SPEAR ===
=== SIG MCX-SPEAR ===
The [[SIG MCX SPEAR]] was developed as Sig Sauer's submission for the [[United States Army]] [[Next Generation Squad Weapon Program|Next Generation Squad Weapon]] (NGSW) program and is chambered in [[.277 FURY|6.8×51mm SIG Fury]] cartridge.<ref>{{Cite web|url=https://www.sigsauer.com/dsg|title = U.S. Military and Agency Sales &#124; SIG SAUER}}</ref><ref>{{Cite web|url=https://modernfirearms.net/en/assault-rifles/u-s-a-assault-rifles/ngsw-r-sig-mcx-spear-2/|title = SIG Sauer NGSW-R MCX Spear assault rifle (USA)|date = December 2019}}</ref><ref>{{Cite web|url=https://www.gunpowdermagazine.com/sig-mcx-spear-the-u-s-armys-next-riflesig-mcx-spear-the-u-s-armys-next-rifle/|title=SIG MCX Spear: The U.S. Army's Next Rifle?|date=23 March 2021}}</ref><ref>{{Cite web|url=https://www.thefirearmblog.com/blog/2021/01/15/tfb-gunfest-the-sig-sauer-mcx-spear-ngsw-rifle/|title = &#91;TFB GUNFEST&#93; the SIG Sauer MCX Spear NGSW Rifle -|date = 15 January 2021}}</ref> Sig Sauer was chosen as the winner on 19 April 2022, formerly designated as the XM5 then was later changed to the [[XM7 rifle|XM7]] in U.S. military service.<ref>[https://www.armytimes.com/news/your-army/2022/04/19/army-chooses-sig-sauer-to-build-its-next-generation-squad-weapon/ Army chooses Sig Sauer to build its Next Generation Squad Weapon]. ''[[Army Times]]''. 19 April 2022.</ref>
The [[SIG MCX SPEAR]] was developed as SIG Sauer's submission for the [[United States Army]] [[Next Generation Squad Weapon Program|Next Generation Squad Weapon]] (NGSW) program and is chambered in [[.277 FURY|6.8×51mm SIG Fury]] cartridge.<ref>{{Cite web|url=https://www.sigsauer.com/dsg|title = U.S. Military and Agency Sales &#124; SIG SAUER}}</ref><ref>{{Cite web|url=https://modernfirearms.net/en/assault-rifles/u-s-a-assault-rifles/ngsw-r-sig-mcx-spear-2/|title = SIG Sauer NGSW-R MCX Spear assault rifle (USA)|date = December 2019}}</ref><ref>{{Cite web|url=https://www.gunpowdermagazine.com/sig-mcx-spear-the-u-s-armys-next-riflesig-mcx-spear-the-u-s-armys-next-rifle/|title=SIG MCX Spear: The U.S. Army's Next Rifle?|date=23 March 2021}}</ref><ref>{{Cite web|url=https://www.thefirearmblog.com/blog/2021/01/15/tfb-gunfest-the-sig-sauer-mcx-spear-ngsw-rifle/|title = &#91;TFB GUNFEST&#93; the SIG Sauer MCX Spear NGSW Rifle -|date = 15 January 2021}}</ref> SIG Sauer was chosen as the winner on 19 April 2022, formerly designated as the XM5 then was later changed to the [[XM7 rifle|XM7]] in U.S. military service.<ref>[https://www.armytimes.com/news/your-army/2022/04/19/army-chooses-sig-sauer-to-build-its-next-generation-squad-weapon/ Army chooses Sig Sauer to build its Next Generation Squad Weapon]. ''[[Army Times]]''. 19 April 2022.</ref>


==Users==
==Users==
[[File:SIG MCX Users.png|thumb|Map with SIG MCX users in blue]]<!--READ FIRST: This section is for cited entries only. Please do not add entries into this list without a citation from a reliable source. All entries without a citation will be removed. Thank you.-->
[[File:SIG MCX Users.png|thumb|Map with SIG MCX users in blue]]<!--READ FIRST: This section is for cited entries only. Please do not add entries into this list without a citation from a reliable source. All entries without a citation will be removed. Thank you.-->


* {{AUS}}: Used by the [[NSW Police Force]] [[State Protection Group|Tactical Operations Unit]]<ref>{{cite magazine |last1=André |first1=Dom |title=TOU Australia |magazine=FLASHBANG |issue=12 |url=https://flashbang-magazine.com/ecommerce/index.php/magazine/fall-2019-edition-012.html |access-date=14 March 2023 |publisher=NIMROD|location=France |date=Fall 2019|page=30}}</ref> and [[Victoria Police Special Operations Group]] in .300BLK.<ref>{{cite news|last1=Dowsley|first1=Anthony|title=Victoria Police special operations, critical incident teams get new guns|url=http://www.heraldsun.com.au/news/victoria/victoria-police-special-operations-critical-incident-teams-get-new-guns/news-story/319a3652c4a8bf0cb6ceaa8107f0e351|work=Herald Sun|date=25 March 2017|archive-url=https://archive.today/20171118051536/http://www.heraldsun.com.au/news/victoria/victoria-police-special-operations-critical-incident-teams-get-new-guns/news-story/319a3652c4a8bf0cb6ceaa8107f0e351|archive-date=18 November 2017|url-status=dead|df=dmy-all}}</ref><ref>{{cite magazine |last1=André |first1=Dom |title=SOG (Australia) |magazine=FLASHBANG |issue=11 |url=https://flashbang-magazine.com/ecommerce/index.php/magazine/summer-2018-edition-010.html |access-date=14 March 2023 |publisher=NIMROD|location=France |date=Summer 2018|page=60}}</ref> SIG MCX in .300BLK is being acquired for [[Special Operations Command (Australia)|Army special forces]] units from 2024 to replace the [[Heckler & Koch MP5|H&K MP5]].<ref>{{cite news|last=Joseph |first=Cpl Jacob |title=Armoury overhauled |url=https://downloads.realviewdigital.com/pdf/army-news/october-13-2022.pdf |work=Army: The Soldiers' Newspaper |edition=1522 | date=13 October 2022|publisher=Department of Defence |location=Canberra, Australia |issn=0729-5685| page=8 |access-date=14 March 2023}}</ref><ref>{{cite press release |title=ADF signs up for next generation of weapons |url=https://www.defence.gov.au/news-events/releases/2022-09-30/adf-signs-next-generation-weapons |website=Department of Defence |access-date=13 March 2023 |date=30 September 2022}}</ref>
* {{AUS}}: MCX Rattler Used by the [[NSW Police Force]] [[State Protection Group|Tactical Operations Unit]]<ref>{{cite magazine |last1=André |first1=Dom |title=TOU Australia |magazine=FLASHBANG |issue=12 |url=https://flashbang-magazine.com/ecommerce/index.php/magazine/fall-2019-edition-012.html |access-date=14 March 2023 |publisher=NIMROD|location=France |date=Fall 2019|page=30}}</ref> and [[Victoria Police Special Operations Group]] in .300BLK.<ref>{{cite news|last1=Dowsley|first1=Anthony|title=Victoria Police special operations, critical incident teams get new guns|url=http://www.heraldsun.com.au/news/victoria/victoria-police-special-operations-critical-incident-teams-get-new-guns/news-story/319a3652c4a8bf0cb6ceaa8107f0e351|work=Herald Sun|date=25 March 2017|archive-url=https://archive.today/20171118051536/http://www.heraldsun.com.au/news/victoria/victoria-police-special-operations-critical-incident-teams-get-new-guns/news-story/319a3652c4a8bf0cb6ceaa8107f0e351|archive-date=18 November 2017|url-status=dead|df=dmy-all}}</ref><ref>{{cite magazine |last1=André |first1=Dom |title=SOG (Australia) |magazine=FLASHBANG |issue=11 |url=https://flashbang-magazine.com/ecommerce/index.php/magazine/summer-2018-edition-010.html |access-date=14 March 2023 |publisher=NIMROD|location=France |date=Summer 2018|page=60}}</ref> SIG MCX in .300BLK is being acquired for [[Special Operations Command (Australia)|Army special forces]] units from 2024 to replace the [[Heckler & Koch MP5|H&K MP5]].<ref>{{cite news|last=Joseph |first=Cpl Jacob |title=Armoury overhauled |url=https://downloads.realviewdigital.com/pdf/army-news/october-13-2022.pdf |work=Army: The Soldiers' Newspaper |edition=1522 | date=13 October 2022|publisher=Department of Defence |location=Canberra, Australia |issn=0729-5685| page=8 |access-date=14 March 2023}}</ref><ref>{{cite press release |title=ADF signs up for next generation of weapons |url=https://www.defence.gov.au/news-events/releases/2022-09-30/adf-signs-next-generation-weapons |website=Department of Defence |access-date=13 March 2023 |date=30 September 2022}}</ref>
* {{BEL}}: [[Directorate of special units|DSU]]<ref>{{Cite web|url=https://static.standaard.be/Assets/Images_Upload/2021/05/21/504fda0e-b976-11eb-ac44-720add958143.jpg?width=1024&format=jpg|title=DSU Operator using a SIG MCX}}</ref> and the special response unit of the Ghent local police (COPS)<ref>{{Cite web|url=https://ebesluitvorming.gent.be/zittingen/17.0707.9989.9721/agendapunten/17.1106.1269.9602|title=Raadpleegomgeving - Open Data - Agendapunt|website=ebesluitvorming.gent.be}}</ref>
* {{BEL}}: [[Directorate of special units|DSU]]<ref>{{Cite web|url=https://static.standaard.be/Assets/Images_Upload/2021/05/21/504fda0e-b976-11eb-ac44-720add958143.jpg?width=1024&format=jpg|title=DSU Operator using a SIG MCX}}</ref> and the special response unit of the Ghent local police (COPS)<ref>{{Cite web|url=https://ebesluitvorming.gent.be/zittingen/17.0707.9989.9721/agendapunten/17.1106.1269.9602|title=Raadpleegomgeving - Open Data - Agendapunt|website=ebesluitvorming.gent.be}}</ref>
*{{CAN}}: Saskatchewan Conservation Officers<ref>{{cite web|title=Sask. seals deals to equip conservation officers with carbines|url=https://www.cbc.ca/news/canada/saskatchewan/sask-conservation-officers-ammunition-carbines-1.4988312|url-status=live|publisher=[[CBC News]]|date=23 January 2019|access-date=23 July 2022|archive-url=https://web.archive.org/web/20220520152944/https://www.cbc.ca/news/canada/saskatchewan/sask-conservation-officers-ammunition-carbines-1.4988312|archive-date=20 May 2022}}</ref>
*{{CAN}}: Saskatchewan Conservation Officers,<ref>{{cite web|title=Sask. seals deals to equip conservation officers with carbines|url=https://www.cbc.ca/news/canada/saskatchewan/sask-conservation-officers-ammunition-carbines-1.4988312|url-status=live|publisher=[[CBC News]]|date=23 January 2019|access-date=23 July 2022|archive-url=https://web.archive.org/web/20220520152944/https://www.cbc.ca/news/canada/saskatchewan/sask-conservation-officers-ammunition-carbines-1.4988312|archive-date=20 May 2022}}</ref> [[Canadian Special Operations Forces Command]]
*{{Flag|Denmark}}: Jægerkorpset<ref>{{Cite web |publisher=Jægerkorpset |date=2023-02-08 |title=Særligt udvalgt, trænet og udrustet - ligesom vores operatører. . |url=https://www.instagram.com/accounts/login/?next=https%3A%2F%2Fwww.instagram.com%2Fp%2FCoZo7j5tdUn%2F |access-date=2023-05-24 |via=www.instagram.com}}</ref>
*{{Flag|Denmark}}: Jægerkorpset,<ref>{{Cite web |publisher=Jægerkorpset |date=2023-02-08 |title=Særligt udvalgt, trænet og udrustet - ligesom vores operatører. . |url=https://www.instagram.com/accounts/login/?next=https%3A%2F%2Fwww.instagram.com%2Fp%2FCoZo7j5tdUn%2F |access-date=2023-05-24 |via=www.instagram.com}}</ref> [[Rigspolitiet]] phasing in until 2027.<ref>{{Cite web |publisher=Rigspolitiet|date=2024-06-06 |title=Rigspolitiet har underskrevet kontrakt om indkøb af ny karabin|url=https://politi.dk/rigspolitiet/nyhedsliste/rigspolitiet-har-underskrevet-kontrakt-om-indkoeb-af-ny-karabin/2024/06/06 |access-date=2024-06-06 |via=https://politi.dk}}</ref>
* {{EST}}: Used by the [[K-Commando]]<ref>{{Cite web|url=https://xn--snumid-pxa.ee/2018/06/suure-politseioppuse-kaigus-harjutati-ohtlike-kurjategijate-tabamist/|title=FOTOD: Suure politseiõppuse käigus harjutati ohtlike kurjategijate tabamist|date=June 20, 2018}}</ref>
* {{EST}}: Used by the [[K-Commando]]<ref>{{Cite web|url=https://xn--snumid-pxa.ee/2018/06/suure-politseioppuse-kaigus-harjutati-ohtlike-kurjategijate-tabamist/|title=FOTOD: Suure politseiõppuse käigus harjutati ohtlike kurjategijate tabamist|date=June 20, 2018}}</ref>
* {{FRA}} : Groupement de commandos de montagne, [[27th Mountain Infantry Brigade (France)|27th Mountain Infantry Brigade]], 5 in 2021, all rifles acquired in [[.300 AAC Blackout]].<ref>{{cite web|url=https://www.facebook.com/421384361224512/posts/4868222473207323/|title=7e Bataillon de Chasseurs Alpins Facebook page|work=[[Facebook]]|date=22 September 2021}}</ref>
* {{FRA}} : Groupement de commandos de montagne, [[27th Mountain Infantry Brigade (France)|27th Mountain Infantry Brigade]], 5 in 2021.<ref>{{cite web|url=https://www.facebook.com/421384361224512/posts/4868222473207323/|title=7e Bataillon de Chasseurs Alpins Facebook page|work=[[Facebook]]|date=22 September 2021}}</ref>
* {{GER}}: [[Berlin Police]], 300 modified MCXs to meet the police's requirements were ordered in October 2017,<ref>{{Cite web|url=https://www.bild.de/regional/berlin/isis-terroristen/das-neue-anti-terror-gewehr-53509630.bild.html|title=Sturmgewehr soll Terroristen abschrecken - Neue Super-Waffe für Berliner Polizisten|website=bild.de}}</ref> plus an additional 160 units for the [[Spezialeinsatzkommando|SEK]] of Berlin,<ref>{{Cite web|url=https://strategie-technik.blogspot.com/2017/11/streifenbuchse-in-schleswig-holstein.html|title=STRATEGIE & TECHNIK: Streifengewehr in Schleswig-Holstein: 522 SIG MCX für die Landespolizei|date=November 25, 2017}}</ref> [[Landespolizei]] of [[Schleswig Holstein]], 531 units ordered.<ref>{{Cite web|url=https://www.ln-online.de/Nachrichten/Norddeutschland/Polizei-in-Schleswig-Holstein-bekommt-522-neue-Sturmgewehre|title=Polizei in Schleswig-Holstein bekommt 522 neue Sturmgewehre|website=LN - Lübecker Nachrichten}}</ref> [[Rhineland-Palatinate Police]]: more than 100 rifles ordered in late 2019.<ref>{{Cite web|url=https://www.sueddeutsche.de/panorama/terrorismus-mainz-rheinland-pfalz-stattet-einheit-mit-mitteldistanzwaffen-aus-dpa.urn-newsml-dpa-com-20090101-191214-99-139065!amp|title=Rheinland-Pfalz stattet Einheit mit Mitteldistanzwaffen aus|website=www.sueddeutsche.de}}</ref>
* {{GER}}: [[Berlin Police]], 300 modified MCXs to meet the police's requirements were ordered in October 2017,<ref>{{Cite web|url=https://www.bild.de/regional/berlin/isis-terroristen/das-neue-anti-terror-gewehr-53509630.bild.html|title=Sturmgewehr soll Terroristen abschrecken - Neue Super-Waffe für Berliner Polizisten|website=bild.de|date=12 October 2017 }}</ref> plus an additional 160 units for the [[Spezialeinsatzkommando|SEK]] of Berlin,<ref>{{Cite web|url=https://strategie-technik.blogspot.com/2017/11/streifenbuchse-in-schleswig-holstein.html|title=STRATEGIE & TECHNIK: Streifengewehr in Schleswig-Holstein: 522 SIG MCX für die Landespolizei|date=November 25, 2017}}</ref> [[Landespolizei]] of [[Schleswig Holstein]], 531 units delivered, but being replaced with HK 437 because the rifles had shortcomings<ref>{{cite web | url=https://www.ndr.de/nachrichten/schleswig-holstein/Landespolizei-Schleswig-Holstein-erhaelt-neue-Waffen,polizei6964.html | title=Polizei in Schleswig-Holstein erhält neue Waffen }}</ref> [[Rhineland-Palatinate Police]]: more than 100 rifles ordered in late 2019.<ref>{{Cite web|url=https://www.sueddeutsche.de/panorama/terrorismus-mainz-rheinland-pfalz-stattet-einheit-mit-mitteldistanzwaffen-aus-dpa.urn-newsml-dpa-com-20090101-191214-99-139065!amp|title=Rheinland-Pfalz stattet Einheit mit Mitteldistanzwaffen aus|website=www.sueddeutsche.de|access-date=2020-02-02|archive-date=2021-06-30|archive-url=https://web.archive.org/web/20210630200014/https://www.sueddeutsche.de/panorama/terrorismus-mainz-rheinland-pfalz-stattet-einheit-mit-mitteldistanzwaffen-aus-dpa.urn-newsml-dpa-com-20090101-191214-99-139065!amp|url-status=dead}}</ref>
* {{ISR}}: Used by [[Shayetet 13]], the [[Israel Defense Forces]] Naval Commando unit.<ref>http://www.ynet.co.il/articles/0,7340,L-5043218,00.html (Hebrew)</ref>
* {{ISR}}: Used by [[Shayetet 13]], the [[Israel Defense Forces]] Naval Commando unit.<ref>http://www.ynet.co.il/articles/0,7340,L-5043218,00.html (Hebrew)</ref>
* {{Flag|Italy}}: Used by [[Comando Raggruppamento Subacquei e Incursori Teseo Tesei]] (Frogmen) of the Italian Navy.<ref>{{Cite web |date=2019-05-22 |title=La situazione delle forze armate italiane: l'armamento degli incursori di Marina |url=https://www.difesaonline.it/mondo-militare/la-situazione-delle-forze-armate-italiane-larmamento-degli-incursori-di-marina-0 |access-date=2024-08-19 |website=Difesa Online |language=it}}</ref>
* {{IDN}}: Used by [[Kopassus]], Indonesian Special forces commando in limited service and so does [[Mobile Brigade Corps]]<ref>{{Cite web |last=admin |date=2021-02-07 |title=Pengenalan Senjata Sig Sauer Personel Yon D Resimen 1 Paspelopor |url=https://investigasibhayangkara.com/pengenalan-senjata-sig-sauer-personel-yon-d-resimen-1-paspelopor/ |access-date=2023-01-13 |website=INVESTIGASI BHAYANGKARA |language=id}}</ref>
* {{IDN}}: Used by [[Kopassus]], Indonesian Special forces commando in limited service and so does [[Mobile Brigade Corps]]<ref>{{Cite web |last=admin |date=2021-02-07 |title=Pengenalan Senjata Sig Sauer Personel Yon D Resimen 1 Paspelopor |url=https://investigasibhayangkara.com/pengenalan-senjata-sig-sauer-personel-yon-d-resimen-1-paspelopor/ |access-date=2023-01-13 |website=INVESTIGASI BHAYANGKARA |language=id}}</ref>
* {{NLD}}: Used by the [[Netherlands Maritime Special Operations Forces]] and the [[Dienst Speciale Interventies]]. All rifles acquired in [[.300 AAC Blackout]] and fitted with the SIG Suppressed Upper Receiver.<ref name="JanesNLD">{{cite web|url=http://www.janes.com/article/65747/sig-mcx-rifles-delivered-to-dutch-special-forces|title=SIG MCX rifles delivered to Dutch special forces|date=24 November 2016|first=Remigiusz|last=Wilk|website=IHS Jane's 360|publisher=[[Jane's Defence Weekly|IHS Jane's Defence Weekly]]}}</ref><ref>{{cite news |title=Dutch MARSOF officially purchase .300 BLK SIG MCX Rifles |url=https://www.thefirearmblog.com/blog/2016/12/09/dutch-marsof-officially-purchase-300-blk-sig-mcx-rifles/ |work=The Firearm Blog |date=2016-12-09}}</ref>
* {{NLD}}: Used by the [[Netherlands Maritime Special Operations Forces]] and the [[Dienst Speciale Interventies]]. All rifles acquired in [[.300 AAC Blackout]] and fitted with the SIG Suppressed Upper Receiver.<ref name="JanesNLD">{{cite web|url=http://www.janes.com/article/65747/sig-mcx-rifles-delivered-to-dutch-special-forces|title=SIG MCX rifles delivered to Dutch special forces|date=24 November 2016|first=Remigiusz|last=Wilk|website=IHS Jane's 360|publisher=[[Jane's Defence Weekly|IHS Jane's Defence Weekly]]}}</ref><ref>{{cite news |title=Dutch MARSOF officially purchase .300 BLK SIG MCX Rifles |url=https://www.thefirearmblog.com/blog/2016/12/09/dutch-marsof-officially-purchase-300-blk-sig-mcx-rifles/ |work=The Firearm Blog |date=2016-12-09}}</ref>
* {{POL}}: ''[[GROM|Jednostka Wojskowa Grom]]'' and ''[[JW Formoza]]'' acquired the SIG MCX VIRTUS and MCX RATTLER in .300 AAC Blackout with conversion kits to [[5.56×45mm NATO]] and [[7.62×39mm]] ammunition.<ref>{{Cite web|last=Pacholski|first=Łukasz|date=2021-05-28|title=Operatorzy Formozy otrzymają nowe karabinki automatyczne|url=https://radar.rp.pl/modernizacja-sil-zbrojnych/23187-operatorzy-formozy-otrzymaja-nowe-karabinki-automatyczne|access-date=2021-06-12|website=Radar|language=pl-PL}}</ref>
* {{POL}}: ''[[GROM|Jednostka Wojskowa Grom]]'' and ''[[JW Formoza]]'' acquired the SIG MCX VIRTUS and MCX RATTLER in .300 AAC Blackout with conversion kits to [[5.56×45mm NATO]] and [[7.62×39mm]] ammunition.<ref>{{Cite web|last=Pacholski|first=Łukasz|date=2021-05-28|title=Operatorzy Formozy otrzymają nowe karabinki automatyczne|url=https://radar.rp.pl/modernizacja-sil-zbrojnych/23187-operatorzy-formozy-otrzymaja-nowe-karabinki-automatyczne|access-date=2021-06-12|website=Radar|language=pl-PL}}</ref> Also used by [[Internal Security Agency]]<ref>{{cite news |title=ABW celuje w nową amunicję i granaty hukowe |url=https://infosecurity24.pl/sluzby-specjalne/agencja-bezpieczenstwa-wewnetrznego/abw-celuje-w-nowa-amunicje-i-granaty-hukowe |work=InfoSecurity24 |date=2020-12-11 |language= pl}}</ref> and [[State Protection Service]]<ref>{{cite news |title=SOP na broni nie oszczędza |url=https://infosecurity24.pl/sluzby-mundurowe/sluzba-ochrony-panstwa/sop-na-broni-nie-oszczedza |work=InfoSecurity24 |date=2023-06-07 |language= pl}}</ref>
* {{PRT}}: [[Polícia de Segurança Pública]] acquired SIG MCX in 5.56×45mm NATO. Used by [[Special Operations Group (Portugal)]].<ref>{{Cite web|url=https://www.psp.pt/Pages/apsp/unidadesPolicia.aspx?menu=1&submenu=2|title=Request Rejected|website=www.psp.pt|access-date=2020-02-13|archive-date=2019-01-23|archive-url=https://web.archive.org/web/20190123121305/http://www.psp.pt/Pages/apsp/unidadesPolicia.aspx?menu=1&submenu=2|url-status=dead}}</ref>
* {{PRT}}: [[Polícia de Segurança Pública]] acquired SIG MCX in 5.56×45mm NATO. Used by [[Special Operations Group (Portugal)]].<ref>{{Cite web|url=https://www.psp.pt/Pages/apsp/unidadesPolicia.aspx?menu=1&submenu=2|title=Policia de Segurança Publica :: A PSP :: Quem Somos :: Unidades de Policia|website=www.psp.pt|access-date=2020-02-13|archive-date=2019-01-23|archive-url=https://web.archive.org/web/20190123121305/http://www.psp.pt/Pages/apsp/unidadesPolicia.aspx?menu=1&submenu=2|url-status=dead}}</ref>
* {{flag|Switzerland|size=23px}}: Used by the [[Cantonal police|Geneva Police]].<ref>{{cite web|url=https://www.ghi.ch/le-journal/la-une/nouveau-matos-de-la-police-cest-du-lourd|title=Nouveau matos de la police: c'est du lourd!|date=2 April 2019|access-date=12 June 2023}}</ref>
* {{flag|Switzerland}}: Used by the [[Cantonal police|Geneva Police]].<ref>{{cite web|url=https://www.ghi.ch/le-journal/la-une/nouveau-matos-de-la-police-cest-du-lourd|title=Nouveau matos de la police: c'est du lourd!|date=2 April 2019|access-date=12 June 2023}}</ref>
* {{flag|Spain}}: Used by [[Spanish Navy]]<ref>{{Cite web |last=Saballa |first=Joe |date=2023-11-06 |title=Spanish Navy Buys Sig Sauer MCX Submachine Guns |url=https://www.thedefensepost.com/2023/11/06/spanish-navy-submachine-guns/ |access-date=2024-01-12 |website=The Defense Post |language=en-us}}</ref> and [[Civil Guard (Spain)|Civil Guard]]<ref>{{Cite web |date=2023-01-11 |title=Spain get MCX Rattler similar to AR-15/M4 firing the .300BLK |url=https://bulgarianmilitary.com/2023/01/11/spain-get-mcx-rattler-similar-to-the-ar-15-m4-firing-the-300-blk/ |access-date=2024-01-12 |language=en-US}}</ref>
* {{UKR}}: Used by the [[Security Service of Ukraine|SBU]] [[Alpha Group (Ukraine)|Alpha Group]].<ref>{{cite web|url=https://24tv.ua/specpodrazdelenie_alfa_i_boevye_mashiny_sbu_budet_rabotat_v_den_vyborov_2019__foto_i_video_n1134474?lang=ru|title=Спецподразделение "Альфа" и боевые машины: СБУ будет работать в день выборов 2019 – фото и видео|date=30 March 2019|access-date=28 April 2020}}</ref>
* {{UKR}}: Used by the [[Security Service of Ukraine|SBU]] [[Alpha Group (Ukraine)|Alpha Group]].<ref>{{cite web|url=https://24tv.ua/specpodrazdelenie_alfa_i_boevye_mashiny_sbu_budet_rabotat_v_den_vyborov_2019__foto_i_video_n1134474?lang=ru|title=Спецподразделение "Альфа" и боевые машины: СБУ будет работать в день выборов 2019 – фото и видео|date=30 March 2019|access-date=28 April 2020}}</ref>
* {{flag|Sweden}}: Used by [[Swedish Military Intelligence and Security Service]] National Intelligence Unit.<ref>{{Cite web|url=https://officerstidningen.se/tilltrade-till-musts-krigsforband/ :: Officerstidningen :: Officerstidningen :: Officerstidningen|website=www.officertidninge.se|access-date=2024-08-05}}</ref>
* {{UK}}: Used by the [[Law enforcement in the United Kingdom|Police]] [[Counter Terrorist Specialist Firearms Officer]]s including the [[Metropolitan Police Service]]<ref>{{cite web|url=https://www.eliteukforces.info/uk-military-news/17112015-SCO19-mcx.php|title=SCO19 Spotted With MCX Carbine|work=Elite UK Forces|date=17 November 2015|access-date=16 March 2020}}</ref> and [[United Kingdom Special Forces]] to replace the [[Heckler & Koch MP5|HK MP5SD3s]].<ref>{{cite book |last1=Neville |first1= Leigh|title=The Elite: The A-Z of Modern Special Operations Forces|publisher= Osprey Publishing|year=2019 |isbn=978-1472824295}}p.43</ref>
* {{UK}}: Used by the [[Law enforcement in the United Kingdom|Police]] [[Counter Terrorist Specialist Firearms Officer]]s including the [[Metropolitan Police Service]]<ref>{{cite web|url=https://www.eliteukforces.info/uk-military-news/17112015-SCO19-mcx.php|title=SCO19 Spotted With MCX Carbine|work=Elite UK Forces|date=17 November 2015|access-date=16 March 2020}}</ref> and [[United Kingdom Special Forces]] to replace the [[Heckler & Koch MP5|HK MP5SD3s]].<ref>{{cite book |last1=Neville |first1= Leigh|title=The Elite: The A-Z of Modern Special Operations Forces|publisher= Osprey Publishing|year=2019 |isbn=978-1472824295}}p.43</ref>
* {{USA}}: [[XM7]] being acquired for all [[Department of Defense|DoD]] branches. SIG MCX Rattler in .300BLK is being acquired for [[United States Special Operations Command|USSOCOM]] forces. The LVAW (Low Visibility Assault Weapon), an MCX variant, is used by multiple SOCOM forces including [[United States Navy SEALs]], [[Delta Force]], and [[Joint Special Operations Command]].<ref>{{Cite web|date=2021-08-09|title=This LVAW is SOCOM's overpowered answer to the SMG|url=https://www.sandboxx.us/blog/this-lvaw-is-socoms-overpowered-answer-to-the-smg/|access-date=2021-12-23|website=Sandboxx|language=en-US}}</ref>
* {{USA}}: [[XM7]] being acquired for all [[Department of Defense|DoD]] branches. SIG MCX Rattler and RSAR (Reduced Signature Assault Rifle) in .300BLK are being acquired for [[United States Special Operations Command|USSOCOM]] forces. The LVAW (Low Visibility Assault Weapon) and the CSAW (Close Support Assault Weapon) variants are used by [[Joint Special Operations Command]], notably [[Delta Force]].<ref>{{Cite web|date=2021-08-09|title=This LVAW is SOCOM's overpowered answer to the SMG|url=https://www.sandboxx.us/blog/this-lvaw-is-socoms-overpowered-answer-to-the-smg/|access-date=2021-12-23|website=Sandboxx|language=en-US}}</ref>


==See also==
==See also==
*[[AR-15 style rifle]]
*[[AR-15 style rifle]]
*[[LR-300]], another folding stock AR-15 style rifle
*[[LR-300]], another folding stock AR-15 style rifle
*[[AR-18]], another [[Short-stroke piston]], [[rotating bolt]] folding stock AR-15 style rifle
*[[AR-18]], another folding stock assault rifle which its operating mechanism being used on the MCX


==References==
==References==
Line 119: Line 124:


[[Category:.300 BLK firearms]]
[[Category:.300 BLK firearms]]
[[Category:5.56 mm assault rifles]]
[[Category:5.56×45mm NATO assault rifles]]
[[Category:7.62×39mm semi-automatic rifles]]
[[Category:5.56×45mm NATO semi-automatic rifles]]
[[Category:7.62×39mm assault rifles]]
[[Category:Assault rifles of the United States]]
[[Category:Assault rifles of the United States]]
[[Category:Semi-automatic rifles of the United States]]
[[Category:Semi-automatic rifles of the United States]]

Latest revision as of 05:20, 9 November 2024

SIG MCX
SIG MCX with a standard folding stock
TypeAssault rifle
Carbine
Semi-automatic rifle
Place of originUnited States[1]
Service history
In service2015–present
Production history
ManufacturerSIG Sauer
Unit costMCX VIRTUS Patrol: MSRP US$2,233
MCX VIRTUS SBR: MSRP US$2,233
MCX VIRTUS Pistol: MSRP US$2,235[2]
Produced2015–present
VariantsSee Variants
Specifications
Mass2.61 kg (5.8 lb) (229 mm barrel)
2.72 kg (6.0 lb) (292 mm barrel)
3.6 kg (7.9 lb) (406 mm barrel)
Length730 mm (29 in) stock unfolded (229 mm barrel)
908 mm (35.7 in) stock unfolded (406 mm barrel)
Barrel length229 mm (9.0 in)
292 mm (11.5 in)[3]
406 mm (16.0 in)
Cartridge5.56×45mm NATO
.300 AAC Blackout
7.62×39mm
ActionShort-stroke gas-operated piston, rotating bolt
Rate of fire800–900 rounds/min
Muzzle velocityMCX Carbine 5.56×45mm NATO: 3,000 ft/s (914 m/s)[4]
Effective firing rangeMCX Carbine 5.56×45mm NATO: 1,650 ft (503 m)[4]
Feed system30-round detachable STANAG box magazine
SightsPicatinny rail for mounting iron or optical sights

The SIG MCX is a family of firearms designed and manufactured by SIG Sauer, produced in both selective fire and semi-automatic only models, and features a short-stroke gas piston system, which is inherited from the earlier SIG MPX submachine gun. The MCX is available in rifle, carbine, short-barreled rifle, and pistol configurations (the latter configuration generally conforming to the definition of a compact carbine but for taking a pistol brace rather than a buttstock).[5]

The MCX was further developed into the SIG MCX Spear, which was adopted in its .277 Fury chambering as the XM7 by the U.S. Army in 2022.

History

[edit]

The SIG MCX was first introduced at SHOT Show 2015. The rifle was originally designed by SIG USA, the subsidiary of SIG Sauer based in New Hampshire.[1] In 2016, SIG recalled some of the rifles that had the first-generation bolt carrier group.[6] It has been used by various SWAT teams and militaries, including the Ukrainian Armed Forces during the Russian Invasion of Ukraine. A SIG MCX was used in the 2016 Orlando nightclub shooting, which at the time was the deadliest mass shooting in U.S. history, now second to the 2017 Las Vegas shooting.[7]

Design

[edit]

The SIG MCX series features a short-stroke gas piston[8] system to reduce recoil and improve the reliability of the weapon;[9] this was based on the design of the earlier SIG MPX.[10] The MCX features a system that allows for conversion between 5.56×45mm NATO, .300 AAC Blackout, and 7.62×39mm ammunition, using standard 5.56 mm STANAG magazines for 5.56×45mm NATO and .300 AAC Blackout, and specially designed STANAG-compatible magazines for 7.62×39mm.[10] The MCX is designed to deliver optimal performance with .300 AAC Blackout and an optional suppressor.[11]

The barrel's profile is tapered at the crown to allow the installation of muzzle devices and direct-thread sound suppressors without the use of washers that degrade performance and allows the devices to self-center on installation. The barrel can be changed in a matter of seconds to another length or a different caliber. Additionally the barrels are nitride coated for corrosion resistance.[12][13] It features hardened steel wear points.[10][12]

First generation MCX variants have a forend made of aluminum with a KeyMod system to add accessories while second generation MCX variants have an M-LOK handguard. Controls are mostly ambidextrous including the charging handle but not the bolt release. Sig produces four stock configurations are available for the MCX carbine.[10][13] The overall layout of the two rifles is similar.[14] SIG designed the upper receiver to be compatible with standard AR-15 and M16 lower receivers[10][12] with the help of an adapter.[15]

An integrally suppressed upper receiver group based on the MCX was selected by USSOCOM for the SURG (Suppressed Upper Receiver Group) contract in July 2018. These suppressed uppers would be paired with existing M4A1 lowers in SOCOM inventory.[16][17]

Variants

[edit]

SIG MCX

[edit]

The SIG MCX is available with a safe/semi-automatic trigger group for the U.S. civilian market, or safe/semi-automatic/fully automatic trigger group for the military and law enforcement agencies.[10]

SIG Sauer offers the rifle in semi-automatic only in three different configurations for the civilian market:

  • The SIG MCX PATROL is the standard configuration of the rifle with a 406 mm (16 in) barrel.
  • The SIG MCX SBR is a short-barreled rifle configuration of the rifle with a 229 mm (9 in) barrel. (Under U.S. federal law, rifles with barrels shorter than 16 inches are Title II weapons, which are subject to federal restrictions, as well as being regulated by state laws).[10]
  • The SIG MCX Pistol is the pistol configuration of the rifle with a 229 mm (9 in) barrel or 292 mm (11.5 in) barrel and comes either with the SIG Sauer SBX (pistol stabilizing brace) or SIG Sauer PCB (pistol pivoting contour folding brace). (This configuration fits the U.S. legal definition of a "handgun", in that it is only designed to be fired with a single point of contact with the shooter's body,[18] though it is really a compact carbine rifle, as it fires an intermediate round. The BATFE previously warned users that shouldering a weapon fitted with the SIG SBX, or a similar forearm brace, and not registered as a short-barreled rifle, constitutes the making of a short-barreled rifle, which is a Title II weapon.[19] However, as of April 2017, this is no longer the case).[20]
  • The SIG MCX Low Visibility Assault Weapon (LVAW) is a short-barreled, suppressed, select-fire variant available only to military and law enforcement agencies. It is nicknamed the "Black Mamba".[21][22]

SIG MCX VIRTUS

[edit]

The SIG MCX VIRTUS is the second generation of the SIG MCX series and was introduced in 2017.

  • The SIG MCX VIRTUS Patrol is the standard configuration rifle that features a 406 mm (16 in) barrel, a 1:7 inch twist, a custom SIG Matchlite Duo Trigger for improved accuracy, a folding and collapsing 5-position stock, four handguard lengths to choose from, interchangeable barrels and a special internal recoil system.[23][24]
  • The SIG MCX VIRTUS SBR is the short-barreled rifle configuration of the MCX VIRTUS. It features a 292 mm (11.5 in) barrel for the 5.56×45mm NATO caliber, and a 140 mm (5.5 in) barrel and 229 mm (9 in) barrel for the .300 AAC Blackout caliber.[4][3]
  • The SIG MCX VIRTUS Pistol is the pistol configuration of the MCX VIRTUS which features an SBX stabilizer brace. It features an 292 mm (11.5 in) barrel for the 5.56×45mm NATO caliber, and a 229 mm (9 in) barrel for the .300 AAC Blackout caliber.[4][25]

SIG MCX RATTLER

[edit]

The SIG MCX RATTLER is a short-barreled rifle variant chambered in .300 AAC Blackout and 5.56. It is intended to serve as a personal defense weapon, featuring a 140 mm (5.5 in) barrel, and comes with a Picatinny rail tail interface for attaching either a compact buttstock or a folding PCB (pistol contour brace).[26] In February 2018, USSOCOM ordered upper receiver group conversion kits for the MCX Rattler in .300BLK for evaluation.[27] The MCX Rattler was later selected as the winner of SOCOM's Commercial Personal Defense Weapon (CPDW) contract in May 2022 and suppressed MCX Rattlers will be ordered in 5.56 and .300BLK.[28]

SIG MCX-SPEAR LT

[edit]

The SIG MCX-SPEAR LT is the third generation of the SIG MCX, introduced in 2022. With the release of the MCX LT, SIG also designed a new, padded, side-folding stock with an FDE finish option to match the rifles, which civilian versions of the rifle variant are sold with. While the civilian variant is referred to as the "SPEAR LT", referencing the SPEAR from which it derives many of its improvements over the Virtus line, SIG Sauer refers to the military versions as simply the "MCX LT" or "MCX Lightweight".[29]

The defining features of the LT are its new, lightened, handguard and barrel design (borrowed from the SPEAR) ambidextrous bolt catch and release, proprietary SL muzzle device to allow for the use of SIG SAUER's quick detaching SLX and SLH suppressors, and new coyote brown coating (black options are still available for purchase). Intended to serve as a carbine, the civilian model features 11.5-inch (290 mm) or 16-inch (410 mm) barrel and a Picatinny rail tail interface for attaching either a buttstock or a pistol brace. The military model features both of these options, with the addition of 14.5-inch (370 mm) and 9-inch (230 mm) barrels, as well as a custom two-stage match grade select-fire trigger group. It is available in 5.56 mm NATO, .300 Blackout and a 7.62x39mm version with custom 28 round AR-pattern magazines.[30][31]

Derivatives

[edit]

SIG MCX-SPEAR

[edit]

The SIG MCX SPEAR was developed as SIG Sauer's submission for the United States Army Next Generation Squad Weapon (NGSW) program and is chambered in 6.8×51mm SIG Fury cartridge.[32][33][34][35] SIG Sauer was chosen as the winner on 19 April 2022, formerly designated as the XM5 then was later changed to the XM7 in U.S. military service.[36]

Users

[edit]
Map with SIG MCX users in blue

See also

[edit]
  • AR-15 style rifle
  • LR-300, another folding stock AR-15 style rifle
  • AR-18, another folding stock assault rifle which its operating mechanism being used on the MCX

References

[edit]
  1. ^ a b "The Introduction of the MCX Assault Rifle" (PDF). Understanding the Sig Sauer MCX Assault Rifle Used in the Orlando Mass Shooting. Violence Policy Center. June 2016. Retrieved 7 February 2021.
  2. ^ "MCX VIRTUS". sigsauer.com. Retrieved January 5, 2019.
  3. ^ a b "Sig MCX VIRTUS SBR". sigsauer.com. Retrieved January 5, 2019.
  4. ^ a b c d "SIG MCX". Military Factory. Retrieved January 5, 2019.
  5. ^ "2017 SIG SAUER Catalog". dcatalog.com. SIG Sauer. Retrieved 26 February 2017.[dead link‍]
  6. ^ "Sig Sauer MCX Mandatory Recall". SOFREP News. 24 December 2014.
  7. ^ Gibbons-Neff, Thomas. "The gun the Orlando shooter used was a Sig Sauer MCX, not an AR-15. That doesn't change much". The Washington Post. Washington, D.C. Retrieved 2017-07-23.
  8. ^ "SILENCER SATURDAY #226: The MCX Virtus Piston System". The Firearm Blog. April 30, 2022. Retrieved April 30, 2022.
  9. ^ "Is the Sig Sauer MCX Virtus Patrol Better Than an AR-15?". The National Interest. December 21, 2021. Retrieved December 21, 2021.
  10. ^ a b c d e f g "First Look: SIG Sauer MCX". Guns & Ammo. January 13, 2015. Archived from the original on 24 February 2019.
  11. ^ "SIG Sauer MCX Carbine". American Rifleman.
  12. ^ a b c Merrill, David (16 January 2015). "RECOIL Exclusive: Breakdown of the Sig MCX". Recoil.
  13. ^ a b Warden, Drew (October 7, 2015). "Full Review: SIG Sauer MCX". Gun Digest.
  14. ^ Utley, Sean (30 June 2015). "Sig Sauer's MCX Rifle: An Elite Modular Weapons System". Tactical Life.
  15. ^ "AR Lower Receiver Extension Adapter for SIG MCX Upper - Soldier Systems Daily". 9 February 2015. Retrieved 2017-06-10.
  16. ^ "USSOCOM Awards SIG SAUER $48 Mil for Suppressed Upper Receiver Group". Soldier Systems Daily. 29 July 2018. Archived from the original on 19 April 2021. Retrieved 24 May 2022.
  17. ^ "First Look – USSOCOM's New Suppressed Upper Receiver Group (SURG) from SIG SAUER". Soldier System Daily. 2 August 2018. Archived from the original on 30 December 2021. Retrieved 24 May 2022.
  18. ^ Federal Gun Control Act 1968 18 U.S. Code § 921 - Definitions, Cornell.edu, "(29) The term “handgun” means— (A) a firearm which has a short stock and is designed to be held and fired by the use of a single hand"
  19. ^ "The Rise And Fall Of The SB-15 'Sig Brace'". Grand View Outdoors. 24 March 2015. Archived from the original on 25 October 2016. Retrieved 2 August 2016.
  20. ^ "Brace Yourself: ATF Reconsiders Obama-Era Policy on Stabilizing Braces". National Rifle Association Institute for Legislative Action. 25 April 2017.
  21. ^ "On the range with Sig Sauer's MCX 'Black Mamba'". Military Times. 17 April 2014.
  22. ^ Neville, Leigh (31 March 2016). Guns of Special Forces 2001 – 2015. Casemate Publishing. pp. 142–143. ISBN 978-1-4738-8102-0.
  23. ^ Martin, Clay (3 November 2017). "Ready for Any Mission: SIG Sauer MCX Virtus — Full Review". gunsamerica.com. Retrieved January 5, 2019.
  24. ^ "Sig MCX VIRTUS Patrol". sigsauer.com. Retrieved January 5, 2019.
  25. ^ "Sig MCX VIRTUS Pistol". sigsauer.com. Retrieved January 5, 2019.
  26. ^ "SIG MCX RATTLER SBR". SIG Sauer. Archived from the original on 20 May 2022. Retrieved 24 May 2022.
  27. ^ Moss, Matthew (9 February 2018). "SOCOM to Evaluate SIG Sauer's MCX Rattler". The Firearm Blog. Archived from the original on 20 July 2021. Retrieved 24 May 2022.
  28. ^ Moss, Matthew (23 May 2022). "SIG Sauer Rattler Wins US SOCOM Personal Defense Weapon Contract". The Firearm Blog. Archived from the original on 24 May 2022. Retrieved 24 May 2022.
  29. ^ "Defense Strategies Catalog". SIG Sauer. Retrieved 7 August 2024.
  30. ^ "Sig MCX-SPEAR LT". SIG Sauer.
  31. ^ "Introducing the new Sig MCX-SPEAR LT". The Firearm Blog. 2022-09-18.
  32. ^ "U.S. Military and Agency Sales | SIG SAUER".
  33. ^ "SIG Sauer NGSW-R MCX Spear assault rifle (USA)". December 2019.
  34. ^ "SIG MCX Spear: The U.S. Army's Next Rifle?". 23 March 2021.
  35. ^ "[TFB GUNFEST] the SIG Sauer MCX Spear NGSW Rifle -". 15 January 2021.
  36. ^ Army chooses Sig Sauer to build its Next Generation Squad Weapon. Army Times. 19 April 2022.
  37. ^ André, Dom (Fall 2019). "TOU Australia". FLASHBANG. No. 12. France: NIMROD. p. 30. Retrieved 14 March 2023.
  38. ^ Dowsley, Anthony (25 March 2017). "Victoria Police special operations, critical incident teams get new guns". Herald Sun. Archived from the original on 18 November 2017.
  39. ^ André, Dom (Summer 2018). "SOG (Australia)". FLASHBANG. No. 11. France: NIMROD. p. 60. Retrieved 14 March 2023.
  40. ^ Joseph, Cpl Jacob (13 October 2022). "Armoury overhauled" (PDF). Army: The Soldiers' Newspaper (1522 ed.). Canberra, Australia: Department of Defence. p. 8. ISSN 0729-5685. Retrieved 14 March 2023.
  41. ^ "ADF signs up for next generation of weapons". Department of Defence (Press release). 30 September 2022. Retrieved 13 March 2023.
  42. ^ "DSU Operator using a SIG MCX".
  43. ^ "Raadpleegomgeving - Open Data - Agendapunt". ebesluitvorming.gent.be.
  44. ^ "Sask. seals deals to equip conservation officers with carbines". CBC News. 23 January 2019. Archived from the original on 20 May 2022. Retrieved 23 July 2022.
  45. ^ "Særligt udvalgt, trænet og udrustet - ligesom vores operatører. ". Jægerkorpset. 2023-02-08. Retrieved 2023-05-24 – via www.instagram.com.
  46. ^ "Rigspolitiet har underskrevet kontrakt om indkøb af ny karabin". Rigspolitiet. 2024-06-06. Retrieved 2024-06-06 – via https://politi.dk. {{cite web}}: External link in |via= (help)
  47. ^ "FOTOD: Suure politseiõppuse käigus harjutati ohtlike kurjategijate tabamist". June 20, 2018.
  48. ^ "7e Bataillon de Chasseurs Alpins Facebook page". Facebook. 22 September 2021.
  49. ^ "Sturmgewehr soll Terroristen abschrecken - Neue Super-Waffe für Berliner Polizisten". bild.de. 12 October 2017.
  50. ^ "STRATEGIE & TECHNIK: Streifengewehr in Schleswig-Holstein: 522 SIG MCX für die Landespolizei". November 25, 2017.
  51. ^ "Polizei in Schleswig-Holstein erhält neue Waffen".
  52. ^ "Rheinland-Pfalz stattet Einheit mit Mitteldistanzwaffen aus". www.sueddeutsche.de. Archived from the original on 2021-06-30. Retrieved 2020-02-02.
  53. ^ http://www.ynet.co.il/articles/0,7340,L-5043218,00.html (Hebrew)
  54. ^ "La situazione delle forze armate italiane: l'armamento degli incursori di Marina". Difesa Online (in Italian). 2019-05-22. Retrieved 2024-08-19.
  55. ^ admin (2021-02-07). "Pengenalan Senjata Sig Sauer Personel Yon D Resimen 1 Paspelopor". INVESTIGASI BHAYANGKARA (in Indonesian). Retrieved 2023-01-13.
  56. ^ Wilk, Remigiusz (24 November 2016). "SIG MCX rifles delivered to Dutch special forces". IHS Jane's 360. IHS Jane's Defence Weekly.
  57. ^ "Dutch MARSOF officially purchase .300 BLK SIG MCX Rifles". The Firearm Blog. 2016-12-09.
  58. ^ Pacholski, Łukasz (2021-05-28). "Operatorzy Formozy otrzymają nowe karabinki automatyczne". Radar (in Polish). Retrieved 2021-06-12.
  59. ^ "ABW celuje w nową amunicję i granaty hukowe". InfoSecurity24 (in Polish). 2020-12-11.
  60. ^ "SOP na broni nie oszczędza". InfoSecurity24 (in Polish). 2023-06-07.
  61. ^ "Policia de Segurança Publica :: A PSP :: Quem Somos :: Unidades de Policia". www.psp.pt. Archived from the original on 2019-01-23. Retrieved 2020-02-13.
  62. ^ "Nouveau matos de la police: c'est du lourd!". 2 April 2019. Retrieved 12 June 2023.
  63. ^ Saballa, Joe (2023-11-06). "Spanish Navy Buys Sig Sauer MCX Submachine Guns". The Defense Post. Retrieved 2024-01-12.
  64. ^ "Spain get MCX Rattler similar to AR-15/M4 firing the .300BLK". 2023-01-11. Retrieved 2024-01-12.
  65. ^ "Спецподразделение "Альфа" и боевые машины: СБУ будет работать в день выборов 2019 – фото и видео". 30 March 2019. Retrieved 28 April 2020.
  66. ^ www.officertidninge.se :: Officerstidningen :: Officerstidningen :: Officerstidningen https://officerstidningen.se/tilltrade-till-musts-krigsforband/ :: Officerstidningen :: Officerstidningen :: Officerstidningen. Retrieved 2024-08-05. {{cite web}}: Check |url= value (help); Missing or empty |title= (help)
  67. ^ "SCO19 Spotted With MCX Carbine". Elite UK Forces. 17 November 2015. Retrieved 16 March 2020.
  68. ^ Neville, Leigh (2019). The Elite: The A-Z of Modern Special Operations Forces. Osprey Publishing. ISBN 978-1472824295.p.43
  69. ^ "This LVAW is SOCOM's overpowered answer to the SMG". Sandboxx. 2021-08-09. Retrieved 2021-12-23.
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