LaRue Tactical Trijicon RMR QD Mount Lower-1/3 Cowitness Black. It positions the optic at lower-1/3 cowitness when used with iron sights. The LT827 is designed specifically for use with standard AR15 flat top receivers. A slight cantilever allows positioning of the optic slightly forward of the front-edge of the receiver. Like all LaRue mounts it is precision-machined out of bar-stock aluminum and matt 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. Comes complete with QD adjustment wrench and Instructions. Specifications for LaRue Tactical QD Mount for Trijicon RMR Lower-1/3 Cowitness: Manufacturer: LaRue Tactical Color: Black Red Dot Sights-Footprint: STS Optic Cut: Not Applicable Package Contents: LaRue Tactical QD Mount for Trijicon RMR Lower-1/3 Cowitness LaRue Tactical LT827: Trijicon RMR QD Mount Lower-1/3 Cowitness Black