The Calculated Kinetics Optic Adapter Plate enables mounting of RMR footprint optics on SIG P211 GTO and P320 pistols with Romeo 1 Pro cuts. Featuring a precision-engineered design with hard anodized black finish for maximum durability.Calculated Kinetics SIG P211/P320 Optic Adapter PlateConverts Romeo 1 Pro cut to RMR footprint compatibilityFront dovetail design hooks securely under slideIntegrated recoil lugs prevent optic twistingHard anodized black finish for corrosion resistanceComplete kit includes 6-40 screws Torx bit Vibratite and install cardPerfect for shooters looking to mount Trijicon RMR or other RMR-footprint optics on their SIG pistols providing a secure and reliable mounting solution with professional-grade hardware and installation accessories.