The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform. Made in the USA.
| Brand | Magpul |
| Category | Rifle Sights |
| Model | MBUS |
| Series | Rear Sight |
| Firearm Fit | AR-15 |
| Style | Folding |
| Frame Color | Black |
| Frame Material | Polymer |
| Mount Type | Picatinny Rail |
| Weight | 1.30 oz |
This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. 
