The C & H Precision Cross 1911/2011 Optics Plate for Trijicon & Holosun with 10-8 Rear Sight is a professional-grade, 1x unmagnified conversion plate engineered to mount full-sized red dot sights onto slides featuring the proprietary C & H Cross Cut pattern. CNC-machined from lightweight 6061-T6 aluminum and protected by a black MIL-SPEC Type III hard-coat anodized finish, this low-profile adapter transforms the slide pocket into a robust Trijicon RMR interface. It comes equipped with an integrated 10-8 Performance rear iron sight profile, providing shooters with a clean, immediate backup co-witness sight picture without requiring separate dovetail machining. To counter heavy cyclic recoil, the system utilizes patented 416 stainless steel T-nuts and replaceable T-posts to deliver maximum thread engagement and prevent stripping. Requiring no internal electronics or battery power, this American-made hardware package can be sourced through tactical gear suppliers like EuroOptic and includes a comprehensive multi-screw mounting kit covered by the C & H Precision Lifetime Warranty against manufacturing defects. C& H Precision Cross 1911/2011 Optics Plate Plate For Trijicon (RMR/SRO) Holosun (407C/507C/508T) w/ 10/8 Rear Sight CR-RH-RSR