Weaver #45 Bw Blt (46)

The Weaver #45 Bowbolt (46) is a precision-machined aluminum scope base designed to provide a rock-solid mounting platform for optical systems on rifles and similar applications. Each base is engineered to exacting tolerances that ensure consistent, repeatable fit and maximum clamping force between scope rings and the rifle's receiver or accessory rail.

Constructed from aluminum alloy, the Weaver #45 Bowbolt delivers superior strength-to-weight characteristics while resisting corrosion during extended field use. The tight manufacturing tolerances ensure minimal play between the base and mounting surface, eliminating the shifting or creep that can compromise zero during extended shooting sessions. This dimensional consistency is critical for long-range accuracy, where even slight movement can result in point-of-impact drift over multiple shots. The compact 1.5 x 0.5 x 1.5-inch footprint and lightweight 0.06 lbs profile make it practical for hunting rifles, tactical platforms, and other applications where base weight matters.

Shooters and hunters who demand reliable zero retention benefit from Weaver's manufacturing precision. Whether mounting on a bolt-action hunting rifle, an AR-platform rifle, or a precision rifle system, this base provides the foundation needed to keep optics secure across climatic shifts and recoil cycles. Technicians and gunsmiths rely on Weaver bases because the dimensional accuracy reduces installation friction and produces predictable performance across different ring designs and rifle configurations.

Weaver has established itself as a benchmark manufacturer in the optics mounting category, and the #45 Bowbolt reflects that heritage through consistent quality control and straightforward design. Replacing or upgrading a scope base is often the most cost-effective way to improve mounting security without replacing the entire scope system.