Magpul Industries MBUS Back-Up Front Sight Gen 2

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

Polymer construction
Spring-loaded flip up sight
Protective wings shield the spring-locking A2 front sight post
Elevation adjustment tool included

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The MBUS (Magpul(R) 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.