Magpul MBUS Sight - Rear, Flat Dark Earth

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.

• SPRING-LOADED FLIP UP SIGHT

  • 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

  • Polymer construction provides light weight and resists operational abuse

• DETENT AND SPRING PRESSURE KEEPS SIGHT ERECT

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

• CLAMPS TO MOST MIL-STD-1913 PICATINNY RAILS

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

Technical 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.
• Other Specs:
  • Center of aperture to top of rail: 1.42 in.
• WINDAGE ADJUSTMENT
  • ~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