C&H Precision Weapons FN 509 Adapter Plate Trijicon RMR/SRO Holosun 407C 507C508C 508T Black. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers. Specifications for C&H Precision Weapons FN 509 Adapter Plate: Manufacturer: C&H Precision Weapons Red Dot Sights-Footprint: RMR Optic Cut: Trijicon RMR Trijicon SRO Fabric/Material: 6061 Aluminum Color: Black Gun Model: FN 509 Finish: Mil-Spec Type III Hard Anodized Attachment Type: Screw Weight: 0.125 lb Gun Make: FN Herstal Length: 6 in Width: 4 in Height: 0.25 in Condition: New Package Contents: C&H Precision Weapons FN 509 Adapter Plate Optic Plate 6-40 RMR Mounting Screws 6-40 Holosun Mounting Screws What firearm models does the manufacturer say C&H Precision Weapons FN 509 Adapter Plate is compatible with? The manufacturer suggests that C&H Precision Weapons FN 509 Adapter Plate is compatible with FN 509C&H Precision Weapons FN509-RSH: FN 509 Adapter Plate Trijicon RMR/SRO Holosun 407C 507C508C 508T Black