Watch: Suppressed OSS M3 Grease Gun and “Bushmaster” Booby Trap

The M3 “Grease Gun” is a small, cheaply-made submachinegun that was used during World War 2. It’s not great in any way, but it is definitely noteworthy.

And this one is, shall we say, special. It includes a silencer developed specifically for the M3 and issued by the OSS (Office of Strategic Services, which later became the CIA).

This particular example has an excellent provenance, having been provided by OSS to a European resistance fighter for a specific mission right at the end of WW2.

The silencer used wire mesh inside rather than individual baffles. Interesting!

We also get to see a device that’s known as a Bushmaster, which pretty much turns any M3 into a booby trap by allowing it to be fired via a trip-wire. These things are simple and clever at the same time. and we get a good look at how this one works.

Cool!

Russ Chastain

Editor & Contributing Writer Russ Chastain is a lifelong hunter and shooter who has spent his life learning about hunting, shooting, guns, ammunition, gunsmithing, reloading, and bullet casting. He started toting his own gun in the woods at age nine and he's pursued deer with rifles since 1982, so his hunting knowledge has been growing for more than three and a half decades. His desire and ability to share this knowledge with others has also grown, and Russ has been professionally writing and editing original hunting & shooting content since 1998. Russ Chastain has a passion for sharing accurate, honest, interesting hunting & shooting knowledge and stories with people of all skill levels.