Magpul MBUS® Front Flip Up Sight

The MBUS (Magpul Back-Up Sight) Front Flip Up Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR-15/M16 platform. - 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 unobstructed folding under impact - Clamps to MIL-STD-1913 Picatinny rail and provides the same height-over-bore as standard A2 irons - Protective wings shield the spring-locking A2 front sight post - Elevation adjustment tool included; aftermarket tools may be used as well