M43
M43 may refer to:
- Messier 43 (M43), a nebula near the Orion Nebula
- BMW M43, an automobile piston engine
- M43, the original designation for the 7.62 x 39 mm Soviet carbine and rifle round
- M43, the 43rd Mersenne prime number to be identified
- M-43 (Michigan highway), a state highway in Michigan
- M43 Field Cap, a piece of German headgear
This disambiguation page lists articles associated with the title M43.
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