Video—I Have This Old Gun: U.S. M3A1 Grease Gun

by
posted on July 27, 2018
When America entered World War II, the standard U.S. military submachine gun was the famous Thompson M1928A1. The downside of the Thompson Submachine Gun—the Tommy gun—was that it was heavy, hard to produce and expensive to produce. Thus, the Army requested a new submachine gun to replace it. The new variant, known as the M3 Grease Gun, offered low cost, could be produced quickly and was simple. However, it still wasn't simple enough and was made even simpler with the introduction of the M3A1. The crank handle on the M3 was taken off and replaced with a finger hole on the side of the bolt for the M3A1, creating less problems for soldiers during combat. The M3A1 saw service during World War II, the Korean War, the Vietnam War, and even up until Operation Desert Storm in the early 1990s. For more on the U.S. M3A1 Grease Gun, watch this "I Have This Old Gun" segment from a recent episode of American Rifleman TV.













Additional Reading:
The M3 and M3A1 "Grease Guns"

Latest

American Rifleman text on image of Walther P99 AS Final Edition pistol green black gun right-side view shown on shooting range indoors held up by a black wire stand
American Rifleman text on image of Walther P99 AS Final Edition pistol green black gun right-side view shown on shooting range indoors held up by a black wire stand

Rifleman Review: Walther Arms P99 AS Final Edition

Walther Arms celebrated its groundbreaking P99 polymer-pistol design with the P99 AS Final Edition before discontinuing the design.

New For 2025: Savage Arms Stance XR

Going into 2025, Savage Arms has announced a few major updates to its Stance micro-compact handgun design.

Vincent Hancock: Most Decorated Men’s Skeet Olympian In History

American men’s skeet competitor Vincent Hancock made waves at the Paris 2024 Olympic Games as the first Olympic shooter to win four gold medals in the same individual event.

Review: Riton 5 Primal 15-45X 60 mm

The 5 Primal spotting scope is a compact, angled-viewing optic designed to be as condensed as possible.

HK Launches HK USA

Heckler & Koch announced it has launched HK USA, an expansion of its design, production and support facilities in the United States to better serve American enthusiasts.

Wringing Out The KelTec SUB2000 GEN3 Folding PCC

With a rotating fore-end assembly, Kellgren's latest SUB2000 positively advances the design yet retains the classic appeal of the brand's legendary pistol-caliber carbine.

Interests



Get the best of American Rifleman delivered to your inbox.