Talley Scope Mount/Ring Combo features a 30mm tube diameter and low mount height (0.440 front / 0.515 rear). Designed for Browning X-Bolt rifles, this 2-piece set of unitized ring-and-base structures weighs 2.30 oz. Finished in black anodized, it includes scope rings and mounting hardware that directly mount to the rifle receiver using 6-48 screws without requiring a separate rail interface. 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.