American Defense Manufacturing Aimpoint Comp M4 Mount 1 Piece Lower 1/3rd Co-Witness Tactical Lever Black AD-CM4-11 TAC. These Red Dot Sight Mounts from the trailblazers at American Defense Manufacturing feature a 1 piece design that brings a level of quality rarely found in red dot mounts. With an understated beauty the American Defense Manufacturing Aimpoint Comp M4 Mount 1 Piece features a Mil-Spec hard anodized finish. For the most part these will fit snugly on your flattop upper receiver. However they do require a slight gunsmithing to bring the mount into perfect alignment which can take up to 3 hours. Thankfully the American Defense Manufacturing Aimpoint Comp Mount 1 Piece solves all of those issues by clamping down on the sight instead of the more common hook and loop methods. No more having to rely on a wobbly adapter to get the Red Dot Sight Mount that just doesn't belong. Equip the American Defense Manufacturing Aimpoint Comp Mount 1 Piece for a level of quality mounting for your favorite Comp M4 on your next mission. Specifications for American Defense Manufacturing Aimpoint Comp M4 Mount 1 Piece Lower 1/3rd Co-Witness: Manufacturer: American Defense Manufacturing Color: Black Finish: T3 Mil-Spec Anodize Fabric/Material: 6061-T6 Aluminum Red Dot Sights-Footprint: Not Applicable Optic Cut: Not Applicable Weight: 3.1 oz Package Contents: American Defense Manufacturing Aimpoint Comp M4 Mount 1 Piece Lower 1/3rd Co-Witness American Defense Manufacturing AD-CM4-11 TAC R: Aimpoint Comp M4 Mount 1 Piece Lower 1/3rd Co-Witness Tactical Lever Black