Magpul MBUS® Front Flip-Up Sight

Magpul MBUS Front Flip-Up Sight is Magpul's folding back-up iron sight for AR-15/M16 platforms. It is injection-molded polymer, lightweight, and features a spring-loaded flip-up mechanism. It clamps to MIL-STD-1913 Picatinny rails and provides height over bore. The sight can be flipped up from either side and locks in place with a detent. Protective wings shield the front sight post. Elevation adjustment is included. Weight: 1.2 oz.