This suppressed M3 Grease Gun was made to go behind the lines in WWII (VIDEO)

Ian with Forgotten Weapons takes a close look at an SMG used for clandestine operations by the OSS — as well as a booby trap attachment for the same.

While the M3 was a simple .45ACP burp gun popular with the late-war regular GI’s of the day and designed as a cheap and easy replacement for the much more complex Thompson, the gun in Ian’s hands was made for use in more covert operations. Specifically, for an assassination team behind the lines in German-occupied Europe.

The war ended before this specimen could be used, leaving it in collector-grade condition including its wire mesh screened over-barrel suppressor.

As for the booby trap trigger device, stick around and check that little dirty trick out separately.