The MBUS (Magpul® Back-Up Sight) is a low-cost, 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.
Made in U.S.A.
- Impact resistant polymer construction provides light weight and resists operational abuse
- Spring-loaded flip up sight easily activated from either side or by pressing the top
- Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
- Clamps to most any MIL-STD-1913 Picatinny/STANAG 4694 railed hand guard* and provides the same height-over-bore as standard A2 irons
- Protective wings shield the spring-locking A2 front sight post
- Elevation adjustment tool included, but most aftermarket A2 front sight adjustment tools may be used as well
Specifications
- Weight, w/ hardware: 1.2 oz.
- Height above rail, stowed: ~0.51 in.
- Length, stowed: 2.6 in.
- Length, deployed: 1.5 in.
- ~1.6 MOA (1.886"/100m) per click with a 14.5" sight radius
- ~1.2 MOA (1.367"/100m) per click with a 20" sight radius
The Magpul MBUS Front Sight in Tan is a reliable, low-cost solution for backup aiming. Constructed from impact-resistant polymer, it ensures lightweight durability and robust performance against operational wear. Designed specifically for the AR15/M16 platform, this sight easily clamps to most MIL-STD-1913 Picatinny rails. With spring-loaded deployment, it can be activated from either side or by pressing the top, providing quick accessibility. Incorporating protective wings, it safeguards the A2 front sight post and offers adjustable elevation. Weighing only 1.2 oz and featuring compact dimensions, it delivers precision aiming while remaining unobtrusive. Made in the U.S.A., it’s a smart addition to any firearm setup.
