Magpul Industries, MBUS Back-Up Rear Sight Gen 2, Fits Picatinny Rails, Flip Up, Gray
- Spring loaded flip up sight
- Spring-loaded flip up sight easily activated from either side or by pressing the top
- Protective wings shield the dual same plane flip apertures
- Detent knob easily and positively adjusts windage
- Polymer construction provides light weight and resists abuse
- Detent and spring pressure keeps sight in place but allows for unobstructed folding under impact