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The Magpul MBUS Front Back-Up Sight is intended for use on M16/AR-15/M4 platforms however is compatible with any 1913 picatinny rail.
Spring loaded fully folding back-up sight, positive detent locks front sight post, lightweight reinforced polymer construction, adjustment tool/mounting hardware included.
Pair this with aero precision’s complete upper receiver to upgrade your AR build!
Comes in FDE