"The result of a collaboration between Ruger and Magpul, the Ruger RXM Full-Size Semi-Auto Pistol with Aimpoint COA Optic delivers 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 features an A-CUT slide optics cut that mechanically locks the included Aimpoint COA Optic to the slide. Best of all, the RXM delivers a full-sized payload in a package that's just 1"" wide. Black FNC slide finish provides superior corrosion resistance. This model comes with an Aimpoint COA closed-emitter optic mounted directly to the slide. Includes two 17-round 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 A-CUT slide optics cut Flared magazine well Extended magazine release and raised slide stop"