The Thompson submachine gun (also known as the “Tommy Gun”, “Chicago Typewriter”, “Chicago Piano”, or “Trench Broom”) is a blowback-operated, air-cooled, magazine-fed selective-fire submachine gun, invented by the United States Army Brigadier general John T. Thompson in 1918. It was originally designed to break the stalemate of trench warfare of World War I, but was not finished until after the war ended.
The Thompson saw early use by the United States Marine Corps during the Banana Wars, the United States Postal Inspection Service, the Irish Republican Army, the Republic of China, and the FBI (following the Kansas City Massacre).
The Thompson became notorious during the Prohibition era as a signature weapon of various organized crime syndicates in the United States in the 1920s. It was a common sight in the media at the time, and was used by both law enforcement officers and criminals.
The Thompson was widely adopted by the U.S. armed forces during World War II, and was also used extensively by other Allied troops during the war. Its main models were designated as the M1928A1, M1 and M1A1 during this time. More than 1.5 million Thompson submachine guns were produced during World War II.
It is the first weapon to be labelled and marketed as a “submachine gun”.
This is an Auto Ordnance factory 10-round drum magazine for Thompson submachine guns in .45 ACP. This magazine is compatible with modern Thompson 1927-A1 models manufactured in Worcester, MA. It will not fit firearms made in West Hurley, NY or before 1990.
Delivering the look and feel of a classic drum magazine with a compliant 10-round capacity ( Kahr Thompson .45 ACP 10-Round Drum Magazine ), these factory replacement mags are a perfect addition to your Thompson collection.
Founded by John T. Thompson as the company that would go on to launch the historic Thompson submachine gun, Auto Ordnance stays true to the heritage of America’s most iconic weapons while continually refining and improving designs.
Engineered to the same exacting standards as all Thompson magazines, these 10-round drums are ideal for target practice, training and tactical drills.
Pick up a few spare 10-round magazines today!
- Holds 10 rounds of .45 ACP caliber ammunition
- Made in USA
- Includes a drum installation device
- Steel construction for durability
- 6.75″ diameter
- Compatible with most Thompson full-automatic firearms
- Product height (in.): 6.75
- Product width (in.): 6.75
- Drum installation device
- Owner’s manual