Magpul MBUS Rear Back Up Sight

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.

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.