Tier-One Picatinny, Bat HR

• BAT HR action fit: This rail is made specifically for the BAT HR action, giving a correct mounting interface for adding Picatinny-compatible optics and accessories without relying on a universal compromise fit.
• 7075-T6 aluminium construction: The rail uses a high-strength aluminium alloy that keeps weight down while providing the rigidity needed to support a riflescope securely under repeated recoil and regular field use.
• 5-axis CNC one-operation machining: Tier-One machines the rail from round bar stock to the finished form in one operation, which helps maintain alignment and consistency where precise scope mounting matters most.
• STANAG 4694 compliant design standard: The rail exceeds the manufacturing criteria for the 2009 metric upgrade to the Picatinny rail, STANAG 4694 NATO, supporting dependable fit with compatible mounts and accessories.
• Black hard-use finish: The black finish gives the rail a low-visibility appearance and suits practical rifle builds for hunting optics, target rifles, and precision shooting setups.

About the Tier-One Picatinny Rails Series

Tier-One Picatinny Rails are the company’s dedicated line of action-specific scope bases for shooters who want a precise and repeatable mounting platform rather than a generic rail. The series is built around 7075-T6 aluminium and a manufacturing process in which each rail is machined from round bar stock to its finished shape in a single operation on five-axis CNC machinery. That approach reflects the series’ focus on dimensional consistency, clean fit, and stable optic alignment.

Within the Tier-One lineup, these rails serve as the foundation for precision rifle builds, hunting rifles, and tactical optics setups that need a dependable Picatinny interface. The range covers numerous firearm-specific variants, including actions from Anschutz, Barnard, Blaser, Browning, Remington, Sako, Savage, Tikka, and BAT. Depending on the action, rails are offered in 0-, 10-, or 20-MOA configurations, allowing the series to support both straightforward zeroing and setups intended for extended-range shooting. Tier-One also states that the rails exceed the manufacturing criteria for the STANAG 4694 NATO metric upgrade to the Picatinny standard, which underlines the series’ emphasis on fit and compatibility.

About the Tier-One Picatinny, Bat HR

The Tier-One Picatinny, Bat HR is a dedicated mounting base for rifles built on the BAT HR action. Its purpose is simple but important: to provide a stable, correctly machined interface between the rifle and any optic or accessory designed for a Picatinny rail. On a precision rifle, the base is the starting point for the entire sighting system, so correct fit and consistent machining matter just as much as the quality of the rings and scope mounted above it.

This model uses aluminium construction in a black finish, giving it a practical balance of low weight, corrosion resistance, and a subdued appearance that suits both competition and field rifles. As part of the Tier-One Picatinny rail family, it follows the same one-operation 5-axis CNC machining philosophy, which helps preserve alignment and reduces the small dimensional variations that can affect mounting consistency. In practical use, that means a cleaner interface for scope rings, more predictable installation, and a solid platform for repeatable zero retention.

Because it is a true action-specific rail rather than a universal adapter, the Bat HR version is intended for shooters who want a mounting solution matched to their receiver geometry. That makes it well suited to precision shooting applications where optic position, mounting security, and compatibility with standard Picatinny accessories all need to be handled without unnecessary complexity.

About Tier-One

Tier-One was incorporated in 2008 and is based in the United Kingdom. The company focuses on precision shooting accessories, including rifle scope mounts, moderators, bipods, and related hardware. Its manufacturing approach is closely tied to in-house production, with components made on the company’s own five-axis CNC machines, which reflects the brand’s emphasis on machining control and repeatable tolerances.

Tier-One is also established as an OEM manufacturer, having produced components for Blaser, Sauer, AI, and March, and it manufactures precision scope rings for Zeiss USA. That background is relevant to products such as Picatinny rails and scope mounts, where fit, alignment, and material quality are central to performance. Alongside its rail and ring systems, Tier-One is known for products such as the Monomount one-piece scope mount and its Tactical and Evolution bipod lines.

Main Features

• Product type: Picatinny Rail
• Series: Tier-One Picatinny Rails
• Compatibility above: Picatinny Rail
• Compatibility below: BAT HR
• Material: Aluminium
• Color: Black
• Made in: United Kingdom
• Warranty: 10 years

Warranty

Tier-One covers this mount with a 10-year warranty. That stated period suits a precision-machined mounting component intended for long-term use on serious rifle builds.