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

Icarry DD H9 1
Icarry DD H9 1

I Carry: Daniel Defense H9 in an ANR Designs Holster

In our latest “I Carry” segment above, we’re taking a closer look at the Daniel Defense H9, a unique, striker-fired design that borrows popular features from several different handguns. 

The Armed Citizen® Oct. 2, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Are Snub-Nose Revolvers Still Relevant?

In a world of micro-compact handguns, does the venerable snub-nose revolver still have a place? Here are four reasons why you might still consider carrying a snubby.

Behind Federal's 7 mm Backcountry Cartridge

In 2025, Federal Ammunition introduced its new 7 mm Backcountry cartridge, which operates at higher pressures than any previous commercial ammunition offering.

New for 2026: Beretta 94X Performance

The latest step in the evolution of Beretta's 90 series of handguns is the 94X Performance, a handgun that the company calls “the ultimate evolution of the Beretta competition pistol for IPSC and USPSA.”

Interests



Get the best of American Rifleman delivered to your inbox.