Magpul MBUS 3 Rear Sight, Black

### Magpul MBUS 3 Rear Sight, Black The MBUS 3 is a compact back-up sight designed for quick deployment on AR platforms. It is constructed from impact-resistant polymer, keeping weight down while maintaining durability. It uses spring-loaded, ambidextrous deployment and sits at standard AR height when deployed. The windage-adjustable aperture system provides rapid target acquisition. The MBUS 3 is smaller than the original MBUS while retaining the reliability of Magpul's MBUS line. Lightweight, durable, and easy to fold when not in use.