The MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The MBUS Front Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR15/M16 platform.
Made in U.S.A.
MBUS – Front
- Weight, w/ hardware: 1.2 oz.
- Height above rail, stowed: ~0.51 in.
- Length, stowed: 2.6 in.
- Length, deployed: 1.5 in.
- 1.6 MOA (1.886″/100m) per click with a 14.5″ sight radius
- 1.2 MOA (1.367″/100m) per click with a 20″ sight radius