The KAC 45 Degree 200-600 Meter Offset Folding Clamp Mount Sight Kit allows shooters easy access to a set of backup iron sights for close range target engagements without the need to remove their primary optic. The sights attach securely to the 12 o'clock rail position and once deployed, a quick roll of the rifle is all that's needed to acquire a useable sight picture. When not required the sights fold neatly to the right of the rifle's top rail. The Offset Sight Kit includes an elevation adjustable 200-600 Meter Micro Rear Sight and finger adjustable Micro Front Sight assembly. The Clamp Mount design on this sight set allows for a robust attachment, for those look Mfg: Knights Armament SPECS: Fits - Picatinny rails.