Talley Scope Mount/Ring Combo features a 30mm tube diameter and low mount height (0.510 front / 0.510 rear). Designed for Tikka T1 and T1x rimfire rifles, this 2-piece set of unitized ring-and-base structures weighs 2 oz and provides 0 MOA offset. Crafted from aluminum with a black anodized finish, it directly mounts to the factory-drilled receiver using included 6-48 screws without requiring a 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.