American-180 Full Auto 22lr Submachine Gun AM-180 275 Round Drum Mag

American-180 Full Auto 22lr Sub machine Gun AM-180 275 Round Drum Mag . High Powered Armory demonstrating a fun little American 180 Full auto .22 lr sub machine gun in the back yard. The AM180 is a blow-back open-bolt sub gun that shoots around 1,200 rounds per minute with a 180 round or 275 round drum magazine.