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Magpul MBUS Rear Back Up Sight

Magpul MBUS Rear Back Up Sight « »



42.99 $42.99

Save $15.00

Availability: In stock

  • Impact-resistant polymer construction
  • Spring-loaded flip-up design
  • Compatible with MIL-STD-1913 Picatinny rails
  • Adjustable for windage

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Save $15.00

The MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding backup sight, designed to work as a standalone iron sight or co-witnessing rear sight for improved target acquisition and consistent field performance in the event of a dead battery or cracked lens with your red dot or reflex sight. Impact-resistant polymer construction provides superior corrosion resistance and easily withstands years of use and abuse for improved reliability, while the spring-loaded design delivers rapid deployment in fast-action tactical scenarios. Better yet, the dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail-equipped firearms.


  • 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.
Material: Polymer
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