Thompson submachine gun
Submachine gun M1928 Thompson
Type Ssubmachine gun
Service history
In service 1928 onwards
Used by United States Armed Forces
Wars World War II, Korean War, and Vietnam War.
Production history
Designer John T. Thompson
Designed 1917–1920
Manufacturer Auto-Ordnance Company (originally)
Birmingham Small Arms
Savage Arms
RPB Industries
Produced 1921–present
Weight 10.8 lb (Script error kg) empty (M1928A1)
10.6 lb (Script error kg) empty (M1A1)
Length 33.5 in (Bad rounding hereScript error mm) (M1928A1)
32 in (Bad rounding hereScript error mm) (M1/M1A1)
Barrel length 10.5 in (Bad rounding hereScript error mm)
12 in (Bad rounding hereScript error mm) (with cutts compensator)

Shell .45 ACP (11.43 × 23 mm)
Calibre .45 caliber
Barrels 1
Action Blowback, Blish Lock
Rate of fire 600–1500+ rpm, depending upon model
Muzzle velocity 285 metres per second (Bad rounding hereScript error ft/s)
Effective range 50 metres (Bad rounding hereScript error ft)
Feed system 20-round stick/box magazine
30-round stick/box magazine
50-round drum magazine
100-round drum magazine
(M1 and M1A1 models do not accept drum magazines)

The Thompson submachine gun is a weapon that was primarily used by the South Vietnamese Army and provided by the United States.

The Thompson SMG was popularised during the Prohibition era, as it was used by both law enforcement officers and criminals. It soon became a very iconic weapon of the time, and engendered an extensive list of informal nicknames, such as the "Tommy Gun" or "Chicago Typewriter".

Afterwards, the Thompson submachine gun was adopted by the U.S. Military and saw much action during WWII.


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