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; Can also be installed on tactical forearms to mount flashlights and lasers; Mounts to a MIL-STD 1913 dovetail rail; Counter sunk locking cross bolt helps eliminate the possibility of snags; Allows for Zero Cheek-weld shift while transitioning between primary and secondary offset optics; 2.5 inches long but only uses one inch of top rail for mounting; Manufactured from billet 6061 T-6 aluminum.Type III hard coat anodized in a non-reflective combat finish; Lightweight at only 1.45 oz; Limited Lifetime Warranty