LaRue Tactical MRO Red Dot Sight Mount. The height provides 1/3 cowitness with the Iron Sights on M4 Carbine and AR-15 Flattops. Like all LaRue mounts they are precision-machined out of bar-stock aluminum and matte black anodized to provide a durable non-reflective surface finish. The locking LaRue Speed Lever provides outstanding return to zero; the optic can be removed and replaced without loss of zero. Guaranteed. Specifications for LaRue Tactical MRO Red Dot Sight Mount Black: Manufacturer: LaRue Tactical Color: Black Finish: Anodized Gun Model: AR-15 Fabric/Material: Aluminum Red Dot Sights-Footprint: MRO Mount Type: Cantilever Mount Ring Type: Medium Ring Height: Medium Features of LaRue Tactical Trijicon MRO QD Mount Each mount comes complete with replacement mounting screws with wrench QD adjustment wrench vial of blue Locktite and Instructions. Package Contents: LaRue Tactical MRO Red Dot Sight Mount Black LaRue Tactical LT849: MRO Red Dot Sight Mount