Magpul MBUS® 2 Sight – Rear

The MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15 / M16 platform. Made in the USA.   TECHNICAL SPECIFICATIONS More Information Position Rear Height above rail, stowed ~0.51 in. Length, deployed 1.5 in. Length, stowed 2.6 in. Weight, w/ hardware 1.3 oz. Other Specs Center of aperture to top of rail: 1.42 in. WINDAGE ADJUSTMENT ~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius ~0.5 MOA (0.547"/100m) per click with a 20" sight radius