Magpul MBUS MSR Back-up Sight - Front Sight - Black
Low-cost, folding back-up sights specifically tailored for the AR15/M16/M4 platform, the Magpul MBUS MSR Back-up Sights activate and adjust easily to give you trustworthy accuracy in a pinch. These sights clamp to nearly any MIL-STD-1913
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