Redesigned impact point provides improved ignition for less chance of misfires. Redesigned and precision ground to give a direct impact and positive ignition. Heat treated for optimum hardness and durability. Polished impact points provide reliable function. 10/22 Mag. fits 10/22 rifles chambered in .22 WMR only. Firing pin will require fitting by a Gunsmith. Mfg: Power Custom SPECS: Tool steel, 3.3" (8.6cm) long, natural finish.