The Weaver #54 Top-Mount Scope Base (Weaver part no. 48054) is machined specifically for the Browning BAR, giving this popular hunting rifle a factory-tight platform for a riflescope. Weaver cuts the base from aluminum and finishes it in a black gloss that matches the BAR’s factory blued receiver. Because it’s machined to the BAR’s exact screw pattern, it bolts straight to the factory holes with no drilling or gunsmithing needed. This is the correct base to start with if you’re topping off a BAR for hunting season.

Key Specifications

• Purpose-built to fit the Browning BAR, matching the receiver’s factory-drilled screw pattern.
• Listed as a 1-piece base, so a single component bridges the full mounting area.
• Positioned as the front base on the receiver for correct scope eye relief.
• Uses Weaver’s To Receiver mount style, bolting directly to the factory tapped holes.
• Finished in black gloss to match the BAR’s factory blued receiver.
• Machined from aluminum for a lightweight, corrosion-resistant base.
• Requires Weaver-style rings to complete the mount.
• Ships with rings not included, so pair it with your own Weaver-style rings.
• Cross-references as Weaver Application #54 on the brand’s official fit chart.
• Ships at a featherlight 0.0188 lb, adding almost nothing to your order.

Frequently Asked Questions

What rifle does this base fit? It’s machined specifically for the Browning BAR, listed under Weaver’s Application #54.

Are scope rings included? No, this is the base only; pair it with a set of Weaver-style rings to finish the mount.

Does it require any gunsmithing to install? No, it bolts directly to the BAR’s factory screw holes.

Buy the Weaver #54 Top-Mount Scope Base for Browning BAR

A BAR earns its keep in the field, and a scope that holds zero shot after shot starts with a base machined to the receiver’s exact geometry. Order this Weaver #54 from our Lubbock, Texas gun shop and it ships fast to your door, along with more scope bases and mounting hardware.