Warne Mfg 781820MOA: The Warne Skyline Precision Cantilever Mount features two integral recoil lugs along with four mounting crossbolts, the precision mount easily handles the rigors of competition or hard use environments while being at the ideal 1.54\" height for AR type receivers. A generous 2\" cantilever provides optimal eye relief. The Stanag rail interface allows for more precise mount alignment and return to zero capability than a traditional Mil Spec 1913 Picatinny interface, still being compatible with all picatinny rails.