Weaver 63B Top Mount Scope Base, 1-Piece, Black - 48069

This Weaver 63B is a 1-piece top mount aluminum scope base with a gloss black anodized finish, designed for use with Weaver-style rings. It is machined to tight tolerances and features a square-cut notch for precise fit with Weaver detachable rings. Compatible with Marlin, Mossberg, Western Field, and Henry rifles without requiring firearm modifications.