Weaver Top Mount Base #42 for Mossberg 400/Remington 10/11/12, Black - 48042

This Weaver 1-piece aluminum scope base features a top mount design machined to tight tolerances for precise fit and durability. It is designed for Mossberg 400 (front) and Remington Models 10, 11, 12, 34, 341, 511, 512, and 521T (front) with a square-cut notch that mates securely to Weaver detachable rings. The gloss black anodized finish resists recoil effects and comes with custom fastening screws for secure installation without firearm modifications.