Thompson Light Rifle

The Thompson Light Rifle was an attempt by the Auto-Ordnance Company to manufacture a light rifle for the United States Armed Forces. The overall weapon was based on their well proven .45 ACP submachine gun, although the original .30 Carbine caliber rifle was based on the M1921/27 variants. It worked well but due to the war effort was found expensive for mass production and its weight defied the concept of a Light Rifle.[1]

Thompson Light Rifle
TypeAssault Rifle
Place of originUnited States
Production history
Designed1941
ManufacturerAuto Ordnance
Producedprototypes only
Specifications
Cartridge.30 Carbine
Caliber7.62mm
ActionDelayed Blowback
Rate of fire600–1200 rpm
Feed system20/30 round box magazines
SightsIron

The only major differences from the Light Rifle and SMG was the barrel shroud which housed a quick barrel change device similar to the MG42 and pressed steel components to ease production and reduce weight. The in-line stock reduced barrel climb improving accuracy. The Thompson Light Rifle was more reliable and accurate than the M1 Carbine that was adopted and also came with the capability of select fire, which made it close to the likes of the StG-44.

Auto-Ordnance also submitted two other models not based on the Thompson SMG for tests in the .30 Carbine competitions in May and June, 1941. Their first Light Rifle was a more conventional rifle with recoil-operated locked-breech action and weighed about 5.5 pounds.[2] The modified version tested September, 1941 was semi-auto only, had 80 parts, and was found difficult to disassemble and reassemble.[3]

See also

References

  1. http://www.machinegunbooks.com/regular/Thompson18.jpg
  2. Larry Ruth, M1 Carbine: Design, Development & Production, Gun Room Press, 1979, ISBN 0-88227-020-6, pp. 12, 13.
  3. Larry Ruth, M1 Carbine: Design, Development & Production, Gun Room Press, 1979, ISBN 0-88227-020-6, pp. 20, 21.
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