Type	M1, Semi-automatic carbine M2/M3, Select-firecarbine
Place of origin	United States

Service history

In service	1942–1973 (United States)
Wars	World War II Hukbalahap Rebellion Chinese Civil War First Indochina War Korean War Malayan Emergency Algerian War Suez Crisis Cuban Revolution Vietnam War Laotian Civil War Bay of Pigs Invasion Six-Day War Cambodian Civil War The Troubles Angolan Civil War Black September Lebanese Civil War Mexican Drug War

Production history

Designer	Frederick L. Humeston William C. Roemer David Marshall Williams
Designed	1938–1941
Manufacturer	Military contractors Commercial copies
Unit cost	$45 (WW2)
Produced	November 1941–August 1945 (U.S. Military) 1945–present (Commercial)
No. built	6,121,309 (WWII)

Specifications

Mass	5.2 lb (2.4 kg) empty 5.8 lb (2.6 kg) loaded w/ sling
Length	35.6 in (900 mm)
Barrel length	18 in (460 mm)
Cartridge	.30 Carbine (7.62×33mm)
Action	Gas-operated (short-stroke piston), rotating bolt
Rate of fire	Semi-automatic (M1/A1) 750 rounds/min (M2)
Muzzle velocity	1,990 ft/s (607 m/s)
Effective firing range	300 yd (270 m)
Feed system	15- or 30-round detachable box magazine
Sights	Rear sight: aperture; L-type flip or adjustable, front sight: wing-protected post