Description Magpul Gen 2 MBUS Front Flip Up Sight Set (Front and Rear)- Black*Contact for Availability* The MBUS (Magpul Back-Up Sight) is a robust and economical back-up iron sight solution. The MBUS fits all Picatinny rail equipped weapons but is specifically tailored to the AR15/M16 system. Rear Specs: 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 any standard mil-spec 1913 Picatinny rail and provides the same height-over-bore as standard A2 irons Protective wings shield the dual flip apertures Detent knob easily and positively adjusts windage Firearm Rated
