The Ruger KP4 is an American single-action semi-automatic target-shooting pistol. The Ruger KP4 is chambered for the .22 Long Rifle cartridge which it takes from a 10-round magazine. The Ruger KP4 has a 121 mm barrel and adjustable sights. Found on http://www.probertencyclopaedia.com/browse/FPK.HTM
The Ruger KP4 is an American single-action semi-automatic target-shooting pistol. The Ruger KP4 is chambered for the .22 Long Rifle cartridge which it takes from a 10-round magazine. The Ruger KP4 has a 121 mm barrel and adjustable sights.