M3A1
From Wikipedia, the free encyclopedia
M3A1 may refer to:
- Stuart tank, an American light tank with an M3A1 (Stuart III) variant
- M3 Half-track, an American armoured vehicle with an M3A1 variant
- M3 Grease Gun, an American submachine gun with an M3A1 variant
- M3 Scout Car, an American armored car with an M3A1 variant

