The C&H Precision XDM OSP Optic Mount enables seamless installation of Holosun 407K/507K red dot sights on Springfield Armory XDM OSP pistols with precision-engineered reliability.C&H Precision Optic Adapter Plate for Springfield XDM OSPCompatible with Holosun 407K and 507K red dot sightsPrecision machined from 6061 aluminum on HAAS CNC machinesMIL-SPEC Type III Hard Anodized finish for durabilityStainless steel mounting hardware includedMultiple quality inspections before shippingMade in USA by family-owned business in Coastal GeorgiaEngineered to the tightest tolerances for secure optic mounting and reliable performance this adapter plate provides the precision fit needed for competitive shooting and tactical applications.