The C&H Precision Trijicon® RMRcc® Optics Mounting Plate for FN® Five-seveN Pistols is compatible with optics-ready Five-SeveN pistols. Crafted of CNC-machined 6061 aluminum construction and a Mil-Spec type III hard anodized finish for lasting strength and consistent service. Comes with all installation hardware, including a patented stainless steel T-nut. Fits Trijicon RMRcc optics ONLY.