Streamline your scope mounting procedure with Weaver's top mount base pairs. These front and rear base pairs are engineered for durability and optimized performance, specifically tailored for popular firearm models. Constructed from lightweight aluminum, they offer the robustness required to endure even the most severe recoil. Featuring Weaver's renowned cross-lock design, these bases guarantee a secure and precise fit and they are fully compatible with all Weaver top mount cross-lock rings. Precisely engineered front and rear matched pairs, custom-fitted for specific firearms, ensure seamless installation and optimal performance The Cross-Lock channel ensures reliable compatibility by accommodating all Weaver top mount cross-lock rings, providing a secure and stable hold Engineered for durability, this lightweight aluminum construction is specifically designed to withstand the most intense recoil conditions Manufactured in the United States of America