Magpul MBUS Back-Up Sight Rear - Black. TSE # 6726.

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  • $79.95

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.



·         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



MBUS – Rear

·         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.



·         ~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius

·         ~0.5 MOA (0.547"/100m) per click with a 20" sight radius