The MBUS (Magpul Back-Up Sight) are low-cost, color injection molded, folding back-up sights. The MBUS Front Sight is adjustable for elevation while the dual aperture MBUS Rear Sight is adjustable for windage. Fits most 1913 Picatinny rail equipped firearms but is specifically tailored to the AR15/M16 platform.
- Spring loaded flip up sights
- Easily activated from either side or by pressing the top
- Polymer construction provides light weight and resists abuse
- Detent and spring pressure keeps sights in place but allows for unobstructed folding under impact
