Leupold BackCountry Picatinny Rail for Kimber 8400 WSM

• 7075-T6 aluminum construction: The rail uses a strong, lightweight alloy that keeps rifle weight down while providing a rigid platform for consistent optic alignment.
• Picatinny cross-slot pattern: The full rail accepts both Picatinny- and Weaver-style rings, giving broader ring compatibility and more flexibility when setting eye relief.
• Kimber 8400 WSM-specific fit: This one-piece base is made for the Kimber 8400 WSM, so it provides the correct footprint for a secure, properly seated installation.
• 0 MOA cant: The flat rail keeps the scope centered for general hunting and field use, making it a practical choice when extra elevation bias is not required.
• One-piece rail layout: A single base simplifies ring spacing and optic positioning, which helps when mounting different scope lengths on the same rifle action.

About the Leupold BackCountry Bases Series

Leupold BackCountry Bases are part of the company’s BackCountry mount series, a line built for hunters and shooters who want a lighter mounting system without giving up the cross-slot versatility of a rail. In Leupold’s current mount catalog, the series includes model-specific bases for a wide range of rifles, including actions such as the Remington 700 and Winchester 70, which shows the line’s focus on precise firearm fit rather than a one-size-fits-all approach.

A defining feature of the series is its 7075-T6 aluminum construction. That material choice keeps weight low while maintaining the stiffness needed for dependable scope support in the field. Leupold also offers these bases in both zero-elevation and 20 MOA versions, so the same family can serve straightforward hunting setups as well as rifles intended for longer-range shooting. Because the BackCountry cross-slot bases accept Picatinny- and Weaver-style rings, they give users broad ring compatibility and more freedom to position an optic correctly for eye relief and balance.

About the Leupold BackCountry Picatinny Rail for Kimber 8400 WSM

The Leupold BackCountry Picatinny Rail for Kimber 8400 WSM is a one-piece cross-slot base built around a simple goal: provide a stable, lightweight mounting interface for a rifle that may be carried far more than it is fired. Its 0 MOA configuration suits conventional hunting and general shooting setups where a flat rail is the right match for the scope’s internal adjustment range. For many field rifles, that means a straightforward mounting solution without adding forward cant that is unnecessary for the intended distances.

The rail is made from 7075-T6 aluminum, a material choice that matters on a mountain or stalking rifle because it reduces unnecessary weight while still giving the rigidity needed to keep rings and scope aligned. The Picatinny cross-slot format also adds practical flexibility: it accepts both Picatinny- and Weaver-style rings, and the full rail layout makes it easier to place the optic exactly where it needs to be for proper eye relief. That is especially useful when changing scope models or working with longer or shorter main tubes.

Because this base is designed specifically for the Kimber 8400 WSM, it is intended to match that action correctly rather than relying on a generic pattern. The matte black finish keeps the setup visually subdued, while the one-piece design gives a clean, practical foundation for hunting optics and other rifle-mounted sights that use cross-slot rings.

About Leupold

Leupold & Volpel was founded in 1907 in Portland, Oregon by Fred Leupold and Adam Volpel. The company later introduced its first riflescope, the Plainsman, in 1947, establishing the product category that remains central to its identity. In 1962, Leupold introduced the Duplex reticle, a design that became widely recognized in sporting optics for its practical aiming layout.

Today, Leupold & Stevens, Inc. is headquartered in Beaverton, Oregon and remains family-owned. Its product range covers riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and thermal optics, with a strong focus on hunting, shooting, and outdoor use. Within that lineup, Leupold is particularly well known for its VX-series hunting scopes and Mark-series tactical riflescopes, which helps explain why its mounting systems are designed with the same emphasis on secure fit and field durability.

Main Features

• Manufacturer: Leupold
• Series: Leupold BackCountry Bases
• Category: Picatinny rail
• Base configuration: 1-piece
• Compatibility above: Picatinny Rail
• Compatibility below: Kimber 8400 WSM
• Material: Aluminium
• Color: Black - Matte
• Inclination: 0 MOA
• Length: 5.9 in
• Weight: 1.75 oz
• Base/receiver screw torque: 22 in-lbs
• Ring compatibility: Picatinny- and Weaver-style rings

Warranty

10 years. This Leupold mount base is covered by a stated ten-year warranty period, giving defined long-term support for normal ownership and use.