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    The MBUS (Magpul Back-Up Sight) 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.

    Features

    Impact resistant polymer construction provides light weight and resists operational abuse

    Spring-loaded flip up sight easily activated from either side or by pressing the top

    Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.

    Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons

    Protective wings shield the dual, same plane flip apertures

    Sight can still be folded with either large or small aperture in position

    Detent knob easily and positively adjusts windage

    Specifications

    MBUS – Rear Gen 2

    Weight, w/ hardware: 1.3 oz.

    Height above rail, stowed: ~0.51 in.

    Center of aperture to top of rail: 1.42 in.

    Length, stowed: 2.6 in.

    Length, deployed: 1.5 in.

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