The Leupold Standard 1-Piece Base for the Browning BAR (part no. 178121) fits a rifle chambered for standard calibers under .300 Win. Mag. with a solid, factory-style mount. Leupold machines the base from steel and finishes it matte black, and the front dovetail ring pivots for lateral adjustment during bore sighting using the rear windage screws. Shims correct gross elevation, keeping the scope’s own elevation dial free for fine ballistic compensation. Among scope bases for the Browning BAR, this Standard base is the fitted, made-in-USA choice.

Key Specifications

• The base fits Browning BAR rifles, matching that platform’s receiver footprint.
• This product is a one-piece base, simplifying alignment and increasing rigidity for mounted optics.
• Construction is steel, offering strength and long-term wear resistance.
• The finish is matte black, reducing reflections for field and hunting use.
• The design suits standard calibers under .300 Win. Mag., matching common BAR chamberings.
• The front dovetail ring pivots, permitting lateral adjustment with the rear windage screws.
• The mount is shim-compatible, allowing gross elevation changes without using scope travel.
• The component is made in the USA, reflecting domestic manufacturing standards.

Frequently Asked Questions

Will this fit a BAR chambered in .300 Win. Mag.? It is rated for standard calibers under .300 Win. Mag.; confirm your specific chambering fits that range before ordering.

How do I correct elevation with this base? Shims placed under the base handle gross elevation changes, leaving the scope’s internal elevation dial free for fine ballistic adjustments.

Buy the Leupold Standard Base for Browning BAR

A semi-auto hunting rifle deserves a mount that won’t shift under repeated cycling, and this one-piece steel base is built for exactly that duty. Order it from our Lubbock, Texas gun shop and it ships fast.