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20 or 30 round box magazine, 50 or 100 round drum magazine [24] (M1 and M1A1 models do not accept drum magazines) The Thompson submachine gun (also known as the " Tommy gun ", " Chicago typewriter ", or " trench broom ") is a blowback-operated , selective-fire submachine gun , invented and developed by Brigadier General John T. Thompson , a ...
The Thompson submachine gun ("Tommy gun") used a drum magazine in its classic form, but the drum magazines for this weapon were abandoned on the World War II models. [9] The M1921 Thompsons could accommodate either 20-round box magazines or 50-round cylindrical drum magazines; the latter were known as "L drums" because "L" is the Latin numeral ...
Auto-Ordnance Corporation was created by John T. Thompson in August 1916 with the backing of investor Thomas Ryan. In 1915 Thompson had found the Blish Lock patent of Commander John Blish, which was the operating principle of the first prototypes of the Thompson submachine gun and the Thompson Autorifle. In exchange for shares of the newly ...
If drum magazines were mixed and used with different serial-numbered PPSh-41, a loose fitting could result in poor retention and failure to feed. Drum magazines were superseded by a simpler PPS-42 box-type magazine holding 35 rounds, although an improved drum magazine made from 1 mm thick steel was also introduced in 1944. [17]
The MP 18 submachine gun is a simple blowback operated weapon firing from the open bolt. The original MP 18.1 was designed to use the snail drum magazine of the Luger Artillery model pistol. This rotary design type of magazine holds 32 rounds of 9 mm Parabellum, [3] the user having to load the magazine with a proprietary loading tool. A special ...
The M3 became the main submachine gun over the Thompson for the U.S. and South Korean forces during the Korean War, because the Communists used the Thompson submachine gun, which the U.S. donated during World War II, as one of their main weapons during the war. [24] The M3 and M3A1 were largely withdrawn from U.S. frontline service beginning in ...
The American-180 is a submachine gun developed in the 1960s which fires the .22 Long Rifle or .22 ILARCO cartridges from a pan magazine. The concept began with the Casull Model 290 that used a flat pan magazine similar to designs widely used prior to World War II. Only 87 Casull M290s were built, as the weapon was expensive to manufacture. [5]
The Ultimax 100's ergonomics are similar to that of the Thompson submachine gun, specifically the forward grip. [1] Widespread adoption of the design might have been compromised by its feed system. The original Ultimax 100 was meant to be used with a drum magazine holding 100 rounds.