Thompson Submachine Gun, Caliber .45 | |
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M1921 Thompson with vertical fore-grip and 100 round Type ‘C’ drum magazine | |
Type | Submachine gun |
Place of origin | United States |
Service history | |
In service | 1938–1971 (officially, U.S. military)1921–present (other countries) |
Used by | See Users |
Wars |
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Production history | |
Designer | John T. Thompson |
Designed | 1917–1920 |
Manufacturer |
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Produced | 1921–1945 |
No. built | Approximately 1.75 million of all variants,[[[Wikipedia:Citing_sources| |
Variants | See Variants section |
Specifications | |
Mass |
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Length |
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Barrel length |
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Cartridge |
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Action | Blowback, Blish Lock |
Rate of fire |
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Muzzle velocity | 935 ft/s (285 m/s) |
Effective firing range | 164 yds (150 m[17]) |
Feed system |
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