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 the USA.
Key Features
- Spring-loaded flip up sight easily activated from either side or by pressing the top
- 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
- Impact-resistant polymer construction provides light weight and resists operational abuse
- Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact
- Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail
- Provides the same height-over-bore as standard A2 irons
Specifications
- Position
- Rear
- Height above rail, stowed
- ~0.51 in.
- Length, deployed
- 1.5 in.
- Length, stowed
- 2.6 in.
- Weight, w/ hardware
- 1.3 oz.
- Center of aperture to top of rail
- 1.42 in.
- Windage adjustment (14.5" sight radius)
- ~0.7 MOA (0.754"/100m) per click
- Windage adjustment (20" sight radius)
- ~0.5 MOA (0.547"/100m) per click
