The new MBUS (Magpul Back–Up Sight) GEN 2 is a low–cost, color injection molded, folding back–up sight.
The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.
Made in U.S.A.
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