The Thompson submachine gun and the M3 submachine gun, two classic submachine guns (SMGs), helped American GIs win World War II. Both fired the same powerful and ever-beloved .45 ACP (Automatic ...

The .45 caliber submachine gun M3 is often indicated as being a success story of small arms design and development during World War II. Born of the necessities and exigencies of a full national ...

In 1941 the US Military began looking for an alternative for the Thompson submachine guns. In December of 1942 they adopted a new submachine gun, the M3. Built from an all steel construction using ...

The original M3 “grease gun” was developed in the early 1940s and adopted by the U.S. Army in 1943 as a cost-saving alternative to the much more complex and difficult-to-produce Thompson ...

Task & Purpose got a chance to inspect one of them, a modified .45 caliber M3 “Grease Gun” during a behind-the-scenes tour at the Naval Heritage and History Command in Washington, D.C.

The M3 submachine gun, known as the “grease gun,” was created to replace the Tommy gun, but service members were reluctant despite the new SMG weighing less. ...

Towards the end of the war the Thompson was supplemented by the M3 “Grease Gun”, also in .45 ACP. In the U.S. Army, the M3 was used up through the 1991 the Gulf War by vehicle and by Delta ...

This resulted in the M3 submachine gun, which was quickly adopted and produced. Interestingly enough, George Hyde was also the designer of the M3. The M2 Hyde was completely abandoned by the military.