Mako Group Front And Rear Set Of Flip-up Sights With Tritium - 4 Rear Dots Features: - Designed for M4, M16 and AR-15 rifles, the KPOS system, and other weapons with same-plane mounting locations and similar sight height. - Rear sight is finger-adjustable for windage. - Front sight is finger-adjustable for elevation. - Low-profile, lightweight design. - May be used as primary or secondary sights. - Ambidextrous deployment and control. - High-grade polymer and metal construction. - Spring-based locking mechanism will not break or deform. - Mounts to MIL-STD-1913 Picatinny rails. - Front sight height designed for mounting to handguard on same plane as rear sight, not to AR-15 gas blocks. Specifications: Front sight weight: .88 oz. Rear sight weight: 1 oz.