The MBUS 3 Rear Sight is a compact, lightweight, spring-loaded flip-up back-up sight made in the USA. Designed for mobility, durability, and reliability, it features impact-resistant polymer construction and a significantly reduced profile compared to previous generations. 

This rear sight attaches to most MIL-STD-1913 Picatinny rails and maintains standard AR sight height for broad compatibility across platforms such as AR15, M4, M16, AR10, M110, and SR25.

Features

The MBUS 3 features ambidextrous push-button deployment for rapid activation from the stowed position. The spring-loaded mechanism ensures fast and positive engagement when needed.

The rapid-select rotating aperture system allows you to switch between a wide aperture for close-range or low-light situations and a narrow aperture for longer distance precision shooting.

Windage adjustment is tool-less, allowing quick corrections.

Made in USA.