Shooting the Thompsons: Comparing the 1921, 21/28, and M1A1
This video compares three Thompson submachine gun variants: the 1921, 1921/28, and M1A1, focusing on their rates of fire and shootability. The 1921 fires fastest at 960 rpm and is surprisingly controllable, while the 1921/28 (830 rpm) is slightly harder to manage. The M1A1, with the slowest rate of fire (655 rpm), is deemed the most difficult to control due to its lack of a compensator. The original 1921 is preferred for its shooting experience despite less refined sights.









