DPP Titanium Rear Sight Mount/Mounting Plate Compatible with Springfield XD It has one of the lowest bore axes in the industry without any alterations on your pistol. Remove the rear sight on your gun and replace it with our mount in order to mount your Red Dot Sight. You can take our mount off and replace your rear sight at any time. Installation hardware and tools included. 0.13" saddle height. One-Piece Design, Lightweight but strong. This provides a steady sturdy and rugged mount that will hold your zero. Update to 30MOA, Solved some red dots don't have enough elevation adjustment to put the sight down on pistol mount.no more need shim! Compatible With: XD MOD.2 3" SUB-COMPACT MODEL XD MOD.2 3.3" SUB-COMPACT MODEL XD MOD.2 4" SERVICE MODEL XD MOD.2 4" SERVICE MODEL THREADED BARREL XD MOD.2 5" TACTICAL MODEL XD 3" SUB-COMPACT MODEL XD 4" SERVICE MODEL XD(M) 3.8" COMPACT MODEL XD(M) 3.8" MODEL XD(M) 4.5" MODEL XD(M) 4.5" THREADED BARREL MODEL Does not fit: XD(M) 5.25" COMPETITION SERIES MODEL Compatible With Red Dot Sights (Mounting ScrewsINCLUDED): Trijicon RMR/SRO Holosun 407C/507C&508T Swampfox Kingslayer / Liberty / Justice Installation Instructions: Remove the rear sight Slide mount plate into rear sight dovetail *May need press or rubber hammer Tighten dovetail socket set screws Place the red dot sight on mount plate then tighten the mount screws