The C&H Precision Optic Mounting Plate is precision-machined from 6061 aluminum with an anodized finish designed specifically for Glock Gen6 pistols to mount RMR/SRO/HOLO red dot sights.C&H Precision Optic Mounting Plate for Glock Gen6Compatible with RMR SRO and HOLO opticsPrecision-machined 6061 aluminum constructionAnodized finish for durabilityReplaceable 416 stainless steel T-posts for maximum thread engagementStainless steel mounting hardware includedCompatible with C&H EDC EDC Enclosed Max HNT-R Max Holosun 407K and 507KManufactured by a family-owned business in Coastal Georgia on HAAS CNC machines with multiple quality checks this mounting plate features patented stainless-steel T-nuts providing six to seven engagement threads and fully replaceable hardware for long-term reliability.