The Warne 2-Piece Maxima Base for Ruger American Rimfire, Marlin XT-22 & XT-17 in Matte Black combines the strength of a Weaver-style design with a low-profile silhouette to deliver a versatile mounting solution for modern rimfire setups. Engineered to work seamlessly with Warne Maxima QD Rings, these bases allow you to look over the top of the bases to use open sights while maintaining your natural shooting position behind the firearm. The design incorporates a full-width recoil slot in each base, ensuring maximum bearing surface for the recoil control keys of Warne Rings and enhanced alignment under rapid-fire or precision shots. This foundation provides a stable, repeatable mounting platform that supports dependable zero retention across varied optics configurations, scopes, and hunting conditions. Built to endure demanding field use, the Maxima Base leverages rugged construction and precise tolerances to maintain reliability in the harshest environments. Whether youre upgrading a precision rimfire rig or equipping a reliable hunting setup, this base set offers a clean, secure interface that prioritizes strength, consistency, and easy optic mounting.