The C&H Precision FN 509 to Holosun EPS/EPS Carry Optic Mount Plate enables seamless conversion of your FN 509/510/545 pistol to accept Holosun EPS and EPS Carry optics. Precision machined from 6061 aluminum with MIL-SPEC Type III Hard Anodized finish for maximum durability and corrosion resistance.C&H Precision V4 Optic Mount PlateCompatible with FN 509/510/545 pistolsDesigned for Holosun EPS and EPS Carry optics6061 aluminum construction with MIL-SPEC Type III Hard Anodized finishReplaceable 416 stainless steel T-Posts for maximum thread engagementIncludes complete hardware kit: (1) optic plate (2) M3 plate mounting screws (2) 4-40 mounting screws (2) 416 SS T-NutsManufactured in Coastal Georgia with precision CNC machining and multiple quality checks this mount plate features patented stainless steel T-Nuts providing industry-leading thread engagement. The replaceable mounting hardware design ensures long-term serviceability without requiring full plate replacement.