Four, socket-head, cap screws lock scope into rings and prevent slipping from heavy recoil. One-half inch wide to provide excellent support for heavy, tactical, and long-range scopes. Accepts scopes with 30mm diameter tubes. Clamping nut makes it easy to tighten ring to base to a specific torque setting. Low Rings - Machined from steel bar stock, .266" high. High Rings - High-strength aluminum keeps weight to a minimum, .873" high.
SPECS: 4140 steel, parkerized, matte black or 6061-T6 aluminum, anodized, matte black. Heights measured from top of base to bottom of ring. Low: .330" (8.4mm). High: .930" (23.6mm).