M1941 Johnson machine gun

The M1941 Johnson Light Machine Gun, also known as the Johnson and the Johnny gun, was an American recoil-operated light machine gun designed in the late 1930s by Melvin Johnson. It shared the same operating principle and many parts with the M1941 Johnson rifle and the M1947 Johnson auto carbine.

Johnson M1941 LMG
TypeLight machine gun
Place of originUnited States
Service history
In service1940–1961
Used bySee Users
Wars
Production history
Designed1940
Unit costUSD $265 (1941; equivalent to $5,272 in 2022)
Produced1940–1945
No. built9,500
VariantsM1941
M1944
Specifications
Mass13 lb (5.9 kg)
Length42 in (1,100 mm)
Barrel length22 in (560 mm)

Cartridge.30-06 Springfield
ActionShort recoil
Rate of fire300–900 round/min variable
Muzzle velocity2,800 ft/s (850 m/s)
Effective firing range600 m (660 yd)
Feed system20-round, single stack-column detachable box magazine
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