The Magpul MBUS (Magpul Back-Up Sight) is engineered as a robust, low-profile folding rear sight, specifically designed for the AR-15/M16 platform. Constructed from durable, color injection-molded polymer, it offers a reliable secondary aiming solution for users. This firearm accessory integrates onto most 1913 Picatinny rail-equipped weapon systems, providing critical aiming redundancy.
Key Features
- Rapid Deployment: Spring-loaded mechanism facilitates quick, ambidextrous activation by pressing the top release or flipping from either side.
- Precise Windage Adjustment: Features a detent knob for positive, tool-free windage adjustments. Each click offers 0.7 MOA (0.754″/100m) with a 14.5″ sight radius, or 0.5 MOA (0.547″/100m) with a 20″ sight radius.
- Dual Apertures: Equipped with dual, same-plane flip apertures, protected by integrated wings to guard against impacts. The sight can be folded with either aperture in use.
Application & Compatibility Notes
This MBUS rear sight contributes to the readiness of personal defense firearms and is a valuable addition to shooting range equipment setups. It serves as a dependable backup to primary tactical optics, ensuring continued aiming capability. Optimized for the AR-15/M16, it is intended for mounting on a railed fore-end on the same plane as the receiver rail. Note: Not suitable for direct mounting on railed gas blocks due to heat concerns, nor compatible with MOE Hand Guards without an integrated rail section. Made in the USA.
