USFA ZiP .22

The ZiP .22 is a semi-automatic pistol chambered in .22 Long Rifle that the U.S. Fire Arms Manufacturing Company, known as USFA, introduced commercially in 2013. It is a straight blowback handgun with a box-shaped polymer frame and two openings for the trigger and the shooters middle finger. It takes the removable magazines of the Ruger 10-22, with a ten-round rotary magazine as the default, and it has no extractor, so spent cases leave the gun by blowback alone. The action is cycled by pushing in two bars that run along the barrel, a feature that forced the shooters hand close to the muzzle and drew heavy criticism. The pistol was meant to be the receiver of a modular system with swappable sights, rails and an underbarrel attachment, but most of those accessories never passed the prototype stage. Frequent failures to feed and eject made it a commercial failure. Production stopped in 2014 and USFA shut down in 2017. It is a civilian firearm, not a fielded military arm.