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Magpul MBUS Front Sight Flip-Up Back-Up Sight
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.
- 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
- Clamps to most any MIL-STD-1913 Picatinny / STANAG 4694 railed hand guard and provides same height-over-bore as standard A2 irons
- Protective wings shield spring-locking A2 front sight post
- Elevation adjustment tool included, but most aftermarket A2 front sight adjustment tools may be used
- Color: Black
- Elevation adjustment: ~1.6 MOA (1.886"/100m) per click with 14.5" sight radius
- Elevation adjustment: ~1.2 MOA (1.367"/100m) per click with 20" sight radius
- Height above rail (stowed): Approx. 0.51"
- Length: 2.6" (stowed), 1.5" (deployed)
- Weight: 1.2 oz.
- Made in USA
ATTENTION: The online sale of this item is prohibited to Guam, Puerto Rico, & Canada.