Warne Vapor rails are designed to offer shooters an affordable and reliable mounting platform manufactured for your specific firearm. – The V466-20MOA offers 20MOA of elevation built in for longer distance shooting. – Fits: Savage 10/11/12/14/16 Short Action with 6-48 screw receiver will not fit flat back pre accu-trigger receivers – Precision CNC machined from 6061/T6 aluminum – Mil-Spec hardcoat anodized finish for abrasion and corrosion resistance. – Self centering tapered T-15 Torx screws. – Fits Picatinny & weaver style rings and are NATO-STANAG compatible.