MAGPUL SIGHT MBUS REAR BACK-UP SIGHT POLYMER BLACK!

FEATURES
-Impact-resistant polymer construction provides light weight & resists operational abuse
-Spring-loaded flip up sight easily activated from either side or by pressing the top
-Detent & spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
-Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail & 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 & positively adjusts windage

Elevation Adjustment:
0.7 MOA (0.754"/100m) per click with a 14.5" sight radius
0.5 MOA (0.547"/100m) per click with a 20" sight radius