DNZ Game Reaper-Ruger Scope Mount/Ring Combo features a 1 tube diameter and 1.06 mount height with medium ring height. Designed for Ruger 10/22 semi-auto rimfire rifles, this 1-piece integrated base and ring combo provides direct-to-receiver mounting. Constructed in matte black, it measures 4.29 long, 1.49 wide, 1.67 high, and weighs 3 oz. Fits ambidextrous rifles and includes mounting 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.