The C&H Precision Optic Mount Plate precisely converts Sig P320 Legion (M17/M18) pistols from R1P/DPP cut to Trijicon RMR footprint while adding a Glock-style rear sight dovetail for enhanced versatility.Compatible with Sig P320 Legion (M17/M18) with R1P/DPP CutConverts to Trijicon RMR/SRO Holosun 407C/507C/507Comp/508T C&H EDC-XL / COMPAdds Glock-style rear sight dovetail capabilityPrecision machined from mild-grade steel on HAAS CNC machinesMIL-SPEC Type III Hard Anodized black finishV4 MIL/LEO plate thickness: .095 to .099Stainless steel mounting hardware includedMade in Coastal Georgia by family-owned C&H PrecisionEngineered for law enforcement and military applications this mounting solution combines precision manufacturing with multiple quality checks to ensure reliable optic mounting for tactical and competitive shooting applications.