Material: 7075 Aluminum Coating: Matte Black Hardcoat Overall Length: 1.780" Overall Width: 1.1" Mounting Hardware: (2) 6-32 Flat Head Screws, (1) 6-32 X 3/16 Set Screw Red Dot Fitment: Trijicon RMR, Holosun HS507C Simply remove the rear sight on your gun and replace it with our mount in order to mount your Trijicon RMR red dot sight. No alterations are required. You can take our mount off and replace your rear sight at any time. Mounting hardware included. Installation Instructions Remove the rear sight* Install the EGW Sight Mount in the dovetail Tighten set screw (if applicable) Place the red dot sight on the E Mfg: Egw