The legendary "Tommy Gun" — the submachine gun of Prohibition-era gangsters, FBI agents, and WWII soldiers. Designed by General John T. Thompson as a "trench broom" for WWI but arrived too late. Weighed nearly 11 lbs empty. The 50-round drum magazine was iconic but impractical in combat. Used by Dillinger, Capone's men, Bonnie and Clyde, the IRA, and US Marines in Nicaragua. The most culturally iconic American submachine gun. Type: Submachine Gun Action: Blowback Caliber: .45 ACP Capacity: 20 Year introduced: 1919, USA Weight: 88 oz Overall length: 24" Status: Discontinued Military use: Yes Intended use: military, law enforcement, civilian