Magpul MBUS Front Sight: Dependable Precision for Your AR Platform
When it comes to backup sights, the Magpul Back-Up Sight (MBUS) stands as a testament to effective design and reliability. Constructed with impact-resistant polymer, this front sight offers both durability and lightweight convenience—traits essential in any tactical or defensive scenario.
The MBUS is designed specifically for the AR15/M16 platform but fits seamlessly on most 1913 Picatinny-railed hand guards. However, take note that it cannot be mounted to a railed gas block due to heat concerns; instead, position it on a railed fore end level with your receiver rail. This ensures optimal performance without compromising safety.
Featuring spring-loaded flip-up functionality, the sight can be swiftly activated from either side or by pressing directly atop its frame—a crucial feature when speed is of the essence. Its detent and spring pressure not only keep the sight upright during use but also allow it to fold unobstructedly under duress or impact.
The MBUS maintains an identical height-over-bore as standard A2 iron sights while protective wings safeguard its spring-locking A2 front sight post against potential damage. For those seeking precision adjustments, each click provides elevation changes of 1.6 MOA (1.886"/100m) with a 14.5" sight radius or 1.2 MOA (1.367"/100m) with a 20" sight radius.
An included elevation adjustment tool facilitates easy calibration; however, users may opt for most aftermarket A2 front sight tools if preferred—a nod towards versatility in customization options.
Features
- spring loaded flip up sight
- easily activated from either side or by pressing the top
- protective wings shield the spring-locking a2 front sight post
- polymer construction provides light weight and resists abuse
- detent and spring pressure keeps sight in place but allows for unobstructed folding under impact