Warne Scope Mountain Tech 30mm Low Rings are precision CNC machined from 7075/T6 aluminum for a high strength & lightweight platform. Mil-Spec hardcoat anodized finish for abrasion and corrosion resistance. Rings feature stainless steel hardware for “Element Proof” protection. Mil-Spec 65 in/lb., 1/2″ tactical nut attachments, for secure clamping to the rail. Mountain Tech rings are NATO-STANAG compatible, and also fit Picatinny & Weaver style mounts. For maximum compatibility with most scope/firearm combinations. Fits 30 mm tube, low height, matte