Magpul – MBUS 3 Sight Front Flip Up AR-10/AR-15/M4/M16/M110/SR-25
- Magpul MBUS 3 Front Sight Lightweight, Compact, Rugged
- The Magpul MBUS 3 Front Sight represents the next evolution of Magpul’s proven MBUS line, blending the durability and affordability of the original with the refined form factor and enhancements of the MBUS Pro.
- Designed as a compact, low-profile backup, this polymer sight delivers impressive performance in a rugged and ultra-lightweight package.
- Weighing only 25 grams with hardware and folding down to a mere 0.47” in height, the MBUS 3 saves precious rail space and keeps your setup streamlined.
- Its updated design retains Magpul’s reliable spring-loaded deployment, activated via an ambidextrous push-button for quick, intuitive operation under stress.
- Built from Magpul’s impact-resistant polymer, the MBUS 3 Front Sight is engineered to withstand harsh conditions while maintaining zero.
- The tool-less elevation adjustment allows easy tuning on the fly, and the enhanced dual-width front post borrowed from the MBUS Pro provides a more precise sight picture.
- Compatible with MIL-STD-1913 Picatinny rails, the MBUS 3 Front Sight deploys to standard AR-height and pairs seamlessly with the MBUS 3 Rear Sight.
- Available in Black and Flat Dark Earth
- Proudly Made in the USA
Features:
- Full-featured spring-loaded flip up sight
- Impact-resistant polymer construction
- Clamps to most MIL-STD-1913 picatinny rails
Specifications:
- Position Front
- Height above rail, stowed 0.47 in
- Platform AR10, AR15, M4, M16, M110, SR25
- Weight, with hardware 25 g
Other specs:
Elevation adjustment:
- 1 MOA (1.131 / 100 m) per click with a 14.5 sight radius
- 0.7 MOA (0.820 / 100 m) per click with a 20-sight radius
Note:
- Cannot be mounted to railed gas block due to excess heat issues.
- Front MBUS must be mounted to a railed forend on the same plane as the receiver rail.
- Because of this the sight is also not compatible with MOE Hand Guards.











