Meprolight Front & Rear Flip UP Sights Tritium 4 Rear Dots

FRBS M4D is an advanced, tritium illuminated, low-profile, durable, auxiliary front and rear sight set. The front sight post elevation adjustment and rear sight windage adjustment is easily and quickly adjusted without tools. The FRBS M4D is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4 / AR-15 / M-16 platforms and on the FAB Defense® KPOS. Some distinct advantages include, a tritium light source imbedded in the front sight post along with four tritium inserts in the rear peep, ergonomic angel-wing-shaped front shroud helps create a precise optical tunnel that ensures more accurate aiming and faster target acquisition, low folded profile is smooth and inconspicuous, and will not snag on gear, webbing, or brush ,Instant spring-locked deployment mechanism will not slip, break or deform, no tools needed for easy, rapid elevation adjustments, with positive detent locking , made of extremely durable high-grade polymer and metal. Designed for M4, M16 and AR-15 rifles, the KPOS system, and other weapons with same-plane mounting locations 4-dot tritium night sight on rear sight, single dot tritium night sight on front sight post Rear sight is finger-adjustable for windage, front sight is finger-adjustable for elevation Low-profile, lightweight design High-grade polymer and metal construction Ambidextrous deployment and control