Calculated Kinetics Glock MOS to any RMR Footprint optic ( Holosun 407c, 507c, 507 Comp EXCEPT FORWARD PROTRUDING OPTICS LIKE RMR HD/SRO) DOGTAG Optic Plate is a better than OEM mounting solution and includes Hardware, Torx Bit, Vibratite, and Install Card included.Features :Fits GLOCK M.O.S. Models, excluding 43XDesigned for RMR FootprintsIncludes Hardware, Torx Bit, Vibratite, and an Install Card