Video: M1A1 Thompson Submachine Gun

by
posted on February 26, 2016
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
The U.S.-made Thompson Submachine Gun was developed by Gen. John T. Thompson, who envisioned a "one-man, hand-held machine gun" in .45 ACP for use in the ongoing trench warfare of World War I. But the war ended before prototypes could be shipped to Europe. At the start of World War II, the Thompson was the only submachine gun commercially available to the Allies. But the guns were expensive to make. Savage and Auto-Ornance simplified the gun inside and out and made it cheaper and faster to make. The result was the M1 and later the M1A1 Thompson. It turns out the "Blish principle of metallic adhesion" didn't really matter.

To learn more about the iconic Thompson M1A1 Submachine Gun, watch this "I Have This Old Gun" segment from a recent episode of American Rifleman TV.

Latest

Remington Model 1888
Remington Model 1888

I Have This Old Gun: Remington Model 1888

Following Remington's bankruptcy in 1888, a number of the company's unsold Model 1875s were discovered, and it was decided that something could be made from them.

Rifleman Review: Ruger RXM

In 2025, Ruger teamed up with Magpul to create the RXM pistol, a design that uses a chassis-style receiver anchored inside of a polymer grip frame.

New for 2026: Franklin Armory Prevail Rifle

Franklin Armory introduces the company's first bolt-action rifle, the Prevail.

Thinking Of Tinkering? Be Honest About Your Reasons.

There are often benefits to resurrecting an old gun, but cost savings isn’t usually one of them.

New For 2026: Woox High Grade Stocks and Fore-ends

Dress up your lever-action, shotgun or bolt-action rifle while adding functionality.

NRA Partners with ‘We the Free’ Streaming Network

The NRA partners with online streaming service We the Free to bring 2A content.

Interests



Get the best of American Rifleman delivered to your inbox.