Magpul® MBUS Rear Sight
- 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, etc.
- Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons
- Protective wings shield the dual, same plane flip apertures
- Sight can still be folded with either large or small aperture in position
- Detent knob easily and positively adjusts windage