Weaver's popular Grand Slam Rings were recently revamped for an impressive sleek modern new look. Weaver's legendary cross-lock design provides the ultimate in scope lock-down. Made of solid steel these rings stand strong against aggressive recoil. Windage Adjustable Rings allow for a range of crosshair movement right and left when sighting in your scope Made to exact tolerances in the U.S.A. Solid-steel construction withstands punishing recoil Four-hole design for added gripping strength Torx screws increase durability