M1A1 (disambiguation)

M1A1 can refer to multiple US weapons
 * M1A1, a US anti-tank mine.
 * M1A1 Carbine, a variant on the US M1 Carbine.
 * Thompson M1A1, a US submachine gun.
 * Bazooka M1A1, a US anti-tank launcher.

See also: M1