Description
The Magpul MBUS (Magpul Back-Up Sight) Front is a folding polymer back-up sight engineered for AR-15/M16 platforms and 1913 Picatinny‑railed hand guards. It provides elevation adjustment and the same height over bore as standard A2 sights, while the spring-loaded flip mechanism deploys from either side using a top release. Protective wings guard the spring-locking A2-style front sight post. Note: the front MBUS must be mounted to a railed fore end on the same plane as the receiver rail and cannot be mounted to a railed gas block; it is not compatible with MOE hand guards.
Key Specifications
- Configured as a Front sight.
- Style is a Folding Back Up Sight.
- Frame material is Polymer.
- Frame color is Flat Dark Earth.
- Designed for the AR-15/M16 platform.
- Compatible with 1913 Picatinny railed hand guards.
- Elevation adjusts at 1.6 MOA per click (14.5″ sight radius) and 1.2 MOA per click (20.0″ sight radius).
- Model is listed as MBUS.
- Height is listed as 1.5 (value provided without unit).
- Manufactured in the USA.
The MBUS front sight is a practical, lightweight option for shooters seeking a reliable backup aiming solution on a Picatinny rail. Its polymer construction and folding design keep weight low while the A2-compatible height and elevation adjustment make it straightforward to integrate with AR-pattern setups. Whether used as a deployed primary sight or a stored backup, the MBUS delivers a no-nonsense fit and function approach favored by informed shooters who value durable, purpose-built gear.
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