[Paladin2]

"The M3 was an American .45-caliber submachine gun adopted for U.S. Army service on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3.[5] Compared to the Thompson submachine gun, the M3 was cheaper to produce, lighter, more accurate, and was also chambered in .45 ACP."

Never seen this one before either..

[bravo whiskey]

never seen one? we had 2 per tank in my unit in germany in 1975

[Argus]

That’s the “grease gun”, no?

[Afterguard]

It was called the Grease Gun. Stamped receiver and other parts.

[doorgunner69]

More accurate than a Thompson? B.S.

The Thompson was like a squirt gun, very controllable, high cyclic rate.

The M3 had a gawd-awful heavy bolt that slammed back and forth, jerking the gun all over the place. Rate of fire was quite low on the one I fired, which may have been due to a tired recoil spring.

Having fired both, would take the Thompson in a heartbeat.

[hinckley buzzard]

The M3 "grease gun" was sometimes issued as gear to armor personnel and helicopter pilots in VN as late as 1973, when I had my familiarization training with it. It had a sluggish cycle but packed quite a wallop.

[Arrowhead1952]

The Grease Gun. Lots of fun to shoot, wasted a lot of .45 ammo to take out a target, but scared the H*** out of anyone on the business end. Tankers used to have them as an issue item in the field.

[VeniVidiVici]

Believe it or not, it was my issue weapon for my ECM jeep while with the 5th ID in 1986.