The Leupold BackCountry Adaptable Cross-Slot Base provides a lightweight, one-piece mounting platform for Savage 110 short-action rifles with round receivers. Its cross-slot configuration accommodates Picatinny- and Weaver-style scope rings, while the included 6-48 and 8-40 screw sets support compatible receiver configurations.Specifications and Features: Fits Savage 110 short-action round receivers One-piece adaptable cross-slot scope base Accepts Picatinny- and Weaver-style rings 7075-T6 aluminum construction with matte black finish Includes 6-48 and 8-40 mounting screws 0 MOA cant and 1.8 oz product weight