Leupold STD Two-Piece base, Browning A-Bolt LR

• Two-piece steel construction: The separate front and rear bases keep the mounting system compact while providing the strength needed for a secure scope-to-rifle connection on Browning A-Bolt LR actions.
• STD mounting interface: Built for Leupold Standard (STD) rings, this base supports the classic front dovetail and rear windage-adjustable setup, giving extra alignment flexibility during installation.
• Made in the USA: Domestic production and steel construction make this base a practical choice for hunters and shooters who want dependable fit, consistent machining, and long service life.
• Low-profile 4.00 mm height: The restrained base height helps keep the optic close to the bore, which supports a natural cheek weld and a more stable shooting position.
• Broad action compatibility: This pattern fits several Browning A-Bolt, Eurobolt, and Sako A7 variants, making it useful when matching one proven mounting standard across multiple rifles.

About the STD Series

Leupold Standard (STD) bases and rings are one of the brand’s longest-running mounting systems, positioned as a traditional steel solution for hunters and shooters who want a secure optic mount without moving to bulkier tactical rails. The series is built around a front dovetail ring interface and a rear windage-adjustable base, a layout that has remained popular because it combines mechanical simplicity with useful fitting flexibility.

Within Leupold’s lineup, the STD series sits as a practical choice for sporting rifles, especially where a clean profile and proven field reliability matter more than modular accessory space. The system is commonly used on hunting rifles and conventional sporting setups, and it is offered in both 1-piece and 2-piece base configurations depending on the rifle and user preference. Because the rear windage screws allow lateral alignment during bore sighting, the STD design can help preserve more of the riflescope’s internal adjustment range for zeroing or ballistic dial use. That makes the series especially relevant for traditional hunting optics where a strong, low-profile steel mount is preferred.

About the Leupold STD Two-Piece base, Browning A-Bolt LR

The Leupold STD Two-Piece base, Browning A-Bolt LR is a rifle-specific steel base set made for shooters who want the familiar handling of a traditional hunting rifle with the proven fit of the Leupold Standard mounting system. Its two-piece layout leaves the receiver more open than a full-length base, which helps maintain easy access to the action while keeping overall weight and visual bulk down. For many bolt-action hunting rifles, that simpler profile is part of the appeal.

This model is designed for the Browning A-Bolt LR pattern and works with Leupold Standard (STD) rings. In practical use, the defining advantage of the STD system is the combination of a front dovetail lockup and rear windage adjustment. That arrangement gives the mount a solid mechanical hold while also allowing the installer to fine-tune alignment at the base, which can reduce the need to use excessive riflescope windage correction. The result is a cleaner setup process and, in some cases, more internal scope adjustment left available for zeroing.

Steel construction gives the base the rigidity expected for a hard-use hunting optic mount, while the 4.00 mm base height helps keep the optic seated low over the receiver. A lower mounting position can improve cheek weld, support faster sight acquisition, and make the rifle feel more natural from field positions. For shooters building a dependable sporting rifle around the A-Bolt platform, this base offers a straightforward and durable foundation.

About Leupold

Leupold & Volpel was founded in Portland, Oregon, in 1907 by Fred Leupold and Adam Volpel. The company later expanded its optics focus and introduced its first riflescope, the Plainsman in 1947, helping establish Leupold as a long-standing name in American sporting optics. Today, Leupold & Stevens, Inc. is headquartered in Beaverton, Oregon, United States, and the company remains family-owned.

Leupold develops sport optics for hunting, shooting, and outdoor use, with product lines that include riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and thermal optics. In riflescopes especially, the company is well known for the VX-series and the more tactical Mark-series. Its introduction of the Duplex reticle in 1962 is one of the notable milestones tied to its reputation in the shooting optics category.

Main Features

• Manufacturer: Leupold
• Product type: Mount base
• Mounting system: Leupold Standard (STD)
• Base configuration: 2-piece
• Compatible rifle pattern: Browning A-Bolt LR
• Compatibility: FN Browning A-Bolt SA, FN Browning A-Bolt LA, FN Browning Eurobolt SA, FN Browning Eurobolt LA, FN Browning A-Bolt II SA, FN Browning A-Bolt II LA, FN Browning A-Bolt Shotgun, Sako A7 S, Sako A7 L, Sako A7 XS
• Material: Steel
• BH height: 4.00 mm
• Made in: USA
• Warranty: 10 years

Warranty

Leupold covers this mount with a 10-year warranty. This stated period suits a steel mounting component intended for long-term use on sporting rifles and hunting optics setups.