Thompson 1927A-1

Auto-Ordnance · Carbine · In Production · 1974

Weight (empty)5897 g (208.0 oz)
Overall Length1041 mm (40.98")
Barrel Length419 mm (16.50")
Magazine Capacity20 rounds
Action TypeBlowback
Firing MechanismHammer Fired
Muzzle Velocity285 m/s (935 fps)
Muzzle Energy575 J (424 ft·lbf)
Effective Range50 m (55 yd)
Frame MaterialSteel

Primary Caliber: .45 ACP

The Thompson 1927A-1 is the closed-bolt, semi-automatic-only civilian rifle version of the iconic 'Tommy Gun', currently produced by Auto-Ordnance (a Kahr Arms subsidiary). Reintroduced in 1974, it features a 16.5-inch finned barrel (often pinned with a Cutts compensator to reach the 18.5-inch length required to qualify as a rifle under US law), a fixed walnut buttstock, vertical foregrip, and accepts both 20- and 30-round stick magazines as well as 50- and 100-round drum magazines. It preserves...

Country of Origin: United States

Designer: John T. Thompson (original); civilian conversion by Auto-Ordnance/Kahr Arms