The MBUS (Magpul Back-Up Sight) is a low-cost, polymer, color injection molded folding back-up sight. The MBUS Front Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR15/M16 platform. Spring-loaded flip up sight easily activated from either side or by pressing the top release. Protective wings shield the spring-locking A2 front sight post. Provides the same height over bore as standard A2 sights. 1.6 MOA (1.886″/100m) per click with 14.5″ sight radius. 1.2 MOA (1.367″/100m) per click with 20.0″ sight radius. Cannot be mounted to a railed gas block due to excess heat issues. Front MBUS must be mounted to a railed fore end on the same plane as the receiver rail. Because of this the sight is also not compatible with MOE Hand Guards. Made in the USA.
Specifications
- Manufacturer part number: MAG247GRY
- Model: MBUS Sight Front
- Firearm Fit: AR-15
- Color: Stealth Gray
- Frame Material: Polymer
- Firearm Type: AR Platform
- Mount Type: Picatinny Rail / STANAG 4694 Rail
- Style: Folding Back Up Sight
- Base Configuration: Picatinny Rail
- Elevation Adjustment: 1.60 MOA
- Includes: Elevation Adjustment Tool
- Weight: 1.20 oz
Compatibility
Fits AR-15. Mount: Picatinny Rail / STANAG 4694 Rail.
Genuine Magpul product, manufacturer part number MAG247GRY. New in the manufacturer’s packaging with full factory warranty. Usually ships within 1-2 business days.






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