Tapco Scope Base engineered for Ruger 10/22 firearm platforms offers a durable optic mounting base in a sleek black finish. Built with a 20 MOA cant/offset, this base provides additional elevation adjustment needed for extended long-range target shooting. It creates a solid rail interface for stable optics setup and comes complete with mounting screws for direct attachment. 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.