
The Weaver Top-Mount 1-Piece Scope Base is a rugged, precision base for use with Weaver-style scope rings that fit most popular gun models. Constructed of machined aluminum for a combination that'sightweight and durable. Custom-hardened fa
The Weaver Top-Mount Extension Scope Base #40A is machined from aluminum to fit Weaver-style cross-bolt rings tightly. The square-cut notch matches precisely with the cross-bolt to fight the effects of recoil from changing the rifle's zero.
Rugged and precise, the Weaver Top-Mount Single Scope Base can be used with a second one based on your firearm's fitment (not included) to complete your custom setup. This Weaver-style scope ring base is constructed of machined aluminum. Cus