45° Offset Accessory Rail: Allows for small micro red-dot optics, including the Trijicon RMR if equipped with the rail adapter, to be mounted at a 45 degree offset for close range engagements. Ambidextrous by design for right and left hand shooters. The Offset Accessory Rail can also be installed on tactical forearms to mount flashlights and lasers. Mounts to a MIL-STD 1913 dovetail rail. It is manufactured with 5 cross-slot mounting locations to accommodate most micro red-dot optics. Manufactured to MIL-STD-1913 specifications and will accept accessories with a Weaver or MIL-STD 1913 interface. The 45 Degree Offset Accessory Rail is manufactured with an enclosed recessed sidebar with a full one inch of dovetail engagement for secure mounting. Counter sunk locking cross bolt helps eliminate the possibility of snags. The geometry of this low profile offset mount allows for Zero Cheek-weld shift while transitioning between primary and secondary offset optics. The 45 Degree Offset Accessory Rail is 2.5 inches long but only uses one inch of top rail for mounting. Lightweight at only 1.45 oz. Manufactured from billet 6061 T-6 aluminum.Type III hard coat anodized in a non-reflective combat finish to meet mil-spec. Fully deburred for the shooters safety.