Warne Mfg 767620MOA: Warne Mountain Tech is the ideal lightweight precision scope mounting system. The base is precision CNC machined from 7075-T6 aluminum for a high strength and lightweight platform with a Mil-Spec hardcoat anodized finish for abrasion and corrosion resistance. It is compatible with Picatinny and Weaver style mounts and feature stainless steel hardware for \"Element Proof\" protection. This 20MOA model is compatible with Winchester 70 Long Action.