Magpul Mbus Rear Flip Sght Gen 2 Gry

The Magpul MBUS Rear Flip Sight Gen 2 in Gray is a spring-loaded backup iron sight designed for AR-platform rifles and other weapons equipped with MIL-STD-1913 Picatinny rail systems. This compact, color-injected polymer sight provides operators with a lightweight, affordable secondary aiming solution that deploys instantly when primary optics fail or become obscured.

The Gen 2 rear sight features a dual-aperture design with both large and small openings positioned in the same plane, allowing rapid target acquisition across varied engagement distances and lighting conditions without manual height adjustment. The flip mechanism engages from either side or via pressure on the top, enabling one-handed deployment during dynamic shooting. Protective wings flank the apertures to shield them from impact and snag hazards. A detent mechanism locks the sight securely in both the raised and stowed positions, preventing unwanted movement during transit or heavy recoil. The gray colorway offers high visibility while maintaining a professional appearance on carbines and rifles.

This sight serves law enforcement, military personnel, competitive shooters, and responsible civilians who operate AR-15 and M16-platform rifles. It functions as a zero-cost backup to electronic or magnified optics, meeting the requirement for redundant aiming systems in duty and defensive roles. The MBUS Gen 2 is particularly valuable in training environments where cost-effective, reliable iron sights accelerate fundamentals instruction.

Magpul's modular backup sight ecosystem has become the industry standard for AR-platform shooters, offering proven durability and compatibility across thousands of platforms. The lightweight polymer construction keeps overall rifle weight minimal while maintaining rigidity under operational stress.