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 all MIL-STD-1913 Picatinny rail equipped weapons, but is specifically tailored to the AR-15 / M16 / M4 platform.

NOTE: This is for the rear sight only. The MBUS front sight is sold separately.

Made in U.S.A.