The new MBUS (Magpul Back-Up Sight) GEN 2 is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most Picatinny rail equipped weapons.
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
Clamps to most any Picatinny railed hand guard and provides the same height-over-bore as standard A2 irons
Protective wings shield the spring-locking A2 front sight post
Reduced size for greater optics compatibility
Spring-locking front sight post holds consistent elevation