Smith & Wesson M&P15-22 Firing Pin. Constructed from quality steel and featuring a black finish, this firing pin is specifically manufactured for the Smith & Wesson M&P15-22 blowback-operated rifles chambered in .22 LR. This component is installed into the bolt assembly and is responsible for striking the primer of the chambered round. Perfect as a spare or immediate replacement, this S&W piece will keep your Smith & Wesson AR in top operating shape. ____________________RODUCT SPECIFICATIONS:Brand: Smith & WessonCaliber: .22 LRFinish / Color: BlackFirearm Type: RifleMaterial: SteelModels Fit: Smith & Wesson M&P15-22