The Super Precision CompM4 mounts are precision machined from a single piece of 7075-T6 high strength aluminum. They are available in black type 3 hard coat anodize as well as our proprietary DDC (Desert Dirt Color) type 3 hard coat anodize. Utilizing Geissele’s update of the classic nut and bolt method, this mount will attach your red dot to your weapon with 1,400 pounds of clamping force, and features 3 shear lugs for maximum rigidity and return to zero. The height of the Aimpoint CompM4 mount is 1.54” from the top of the pic rail to the center line of the optic. DownloadsGeissele Super Precision Optic Mount – CompM4 InstructionsDownload Geissele Super Precision Aimpoint CompM4 Black Mount 05-618B