BROWNELLS - CAR-15/M4 FLIP-UP Tritium Rear Sight

BROWNELLS - CAR-15/M4 FLIP-UP Tritium Rear Sight Tritium Rear Sight – Adds to the Standard rear sight, self-illuminating, Trijicon® Tritium inserts on each side of the aperture that glow in low light to help you quickly align the aperture with a tritium front sight post in all light conditions. Rugged flip-up sights provide instant backup when primary sight fails or weather conditions limit its use. Robust cross-bolt with oversized, slotted hex nut locks clamping block tightly to Picatinny accessory rail for zero sight movement. Clean, low profile design won’t snag on other gear when folded down. All models regulate with mil-spec A2 carbine sights or same-height aftermarket sights—perfect for co-witnessing with non-magnifying red dot and holographic optical sights. Precision machined from hardcoat anodized 6061 T6 aluminum and heat-treated 4140 steel for repeatable settings and the strength to handle the rigors of combat. A2 windage knob on rear sights provides precise ½ MOA adjustment.