Magpul MBUS 3 Rear Sight – Flat Dark Earth (FDE)

Upgrade your rifle’s backup sighting system with the Magpul MBUS 3 Rear Sight in Flat Dark Earth. The MBUS 3 (Magpul Back-Up Sight) represents the latest evolution in Magpul’s industry-leading polymer backup iron sight lineup, delivering a more streamlined, low-profile design that sits flush with your optic when folded and deploys quickly when you need it most. Built from high-strength, impact-resistant polymer with steel reinforcement at critical stress points, the MBUS 3 features a tool-free, push-button deployment and a fully adjustable rear aperture for both windage and elevation corrections in the field. The FDE finish blends seamlessly with popular flat dark earth-colored rifles and accessories, offering a cohesive, professional look. Designed to mount on standard MIL-SPEC Picatinny (1913) rails, the MBUS 3 is compatible with a wide range of AR-platform rifles and carbines. Whether used as a primary or backup sighting solution, this sight offers the reliability, durability, and precision Magpul is known for worldwide. Order yours today at VanTon Arms and take advantage of our competitive pricing and fast nationwide shipping.