Patent ID: 8118196

Claim:
A cartridge gun, comprising: (a) a housing; (b) a grip connected to the housing; (c) a cartridge holder connected to the housing and comprising a cylindrical base for receiving a floor region of a cartridge; (d) a plurality of resilient gripping elements integrated with the cartridge holder; (e) a displaceable piston rod that passes through the housing; (f) an actuating device for displacing the piston rod; and (g) a stamp provided on a front end of the piston rod, the stamp being displaceable in both a forward direction and a backward direction, wherein the gripping elements project radially outwardly from a center of the cartridge holder in a direction towards the housing into an annular groove provided in the base of the cartridge holder up to an outside wall of the annular groove and are held in the center of the base by means of a hub, and wherein the stamp presses ends of the gripping elements in the direction towards the housing when the piston rod is displaced backwards into a fully retracted position.