The Magpul MBUS (Magpul Back-Up Sight) is a lightweight, spring loaded flip up back-up sight. The MBUS Front Sight is adjustable for elevation and fits most hand guards with Picatinny rails but is specifically tailored to the AR15/M16 platform. Made of a durable impact resistant polymer. Elevation adjustment tool included.
| Color | Flat Dark Earth |
| Weight | 1.2 oz. |
| Length, stowed: | 2.6 in. |
| Length, deployed: | 1.5 in. |
