Magpul Industries MBUS Back-Up Front Sight Gen 2 | Fits Picatinny Rails | Flip Up | Black

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.

KEY FEATURES:
Spring loaded flip up sight | Easily activated from either side or by pressing the top | Protective wings shield the spring-locking A2 front sight post | Polymer construction provides light weight and resists abuse | Detent and spring pressure keeps sight in place