Talley Scope Mount/Ring Combo is a two-piece set of unitized 1-piece ring and base construction made of black aluminum. Designed for Christensen Arms Ridgeline and Mesa short-action bolt rifles (Remington 700 footprint), it weighs 2.90 oz and features 20 MOA offset. Accepts 30mm tube diameters with high ring height (front 0.600, rear 0.710, nominal center 0.650 from top of receiver to centerline). Mounts direct-to-receiver via standard 6-48 hardware. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.