"The result of a collaboration between Ruger and Magpul, the Ruger RXM 4.5"" Semi-Auto Pistol standout performance with extensive customizability. Its removable stainless steel Fire Control Insert (FCI) sits inside an interchangeable Magpul Enhanced Handgun Grip (EHG), giving you tons of customization options for Gen 3 grip frames and other components (not included). In addition, the grip features ¾-scale TSP texturing for a secure and comfortable grip every time. The through-hardened alloy steel slide is cut for direct mounting of optics. Best of all, the RXM delivers a full-sized payload in a package that's just 1"" wide. This model features a 4.5"" barrel with ½""-28 threaded muzzle for easy attachment of a suppressor. Black FNC slide finish provides superior corrosion resistance. Includes 2 magazines and hard plastic carry case. Removable stainless steel Fire Control Insert Interchangeable Magpul Enhanced Handgun Grip Striker-fired with a flat-faced trigger, smooth trigger pull, and tactile reset Just 1"" wide Compatible with most Gen 3 aftermarket parts, holsters, and accessories 4.5"" barrel with ½""-28 threaded muzzle Front tritium steel night sight and steel rear sight Flared magazine well Extended magazine release and raised slide stop"