Tier-One 40 mm Short Monomount Top Picatinny Rail

• 40 mm Monomount fit: Built specifically for 40 mm Tier-One Monomounts, this top rail adds accessory mounting space without changing the core scope mount setup.
• Short top Picatinny interface: The compact rail gives a practical mounting point for compatible aiming or observation accessories while keeping added bulk and weight low.
• Aluminium construction: The aluminium body keeps the accessory light at 50.00 g, so it adds capability without making the rifle feel top-heavy.
• Made in the United Kingdom: UK manufacturing aligns with Tier-One’s precision-machining approach and suits shooters who value consistent fit and finish in mounting components.
• Black finish: The black exterior matches most modern scope mounts and rifle setups, helping the rail integrate neatly with tactical and hunting optics configurations.

About the Tier-One Accessories Series

Tier-One Accessories is the supporting hardware range built around the company’s focus on high-precision rifle-shooting equipment. The series grew from Tier-One’s original aim of producing carefully engineered shooting components and now sits alongside the brand’s optic mounts, moderators and bipods. In practical terms, this accessory family is intended for shooters who want to adapt a rifle system to a specific role rather than replace major components.

Within the range, the emphasis is on parts that expand how existing equipment can be used, including adapters and accessories for firearm-related applications. That makes the series especially relevant to precision rifle shooters who need a cleaner way to add capability, whether that means changing bipod configuration or creating mounting points for compatible add-ons. Tier-One’s design approach is rooted in new accessory concepts and refined engineering methods, so these products are generally made to work as functional extensions of the main platform rather than as generic add-ons. The result is a series defined by practical compatibility, compact form and a clear focus on rifle setup efficiency.

About the Tier-One 40 mm Short Monomount Top Picatinny Rail

The Tier-One 40 mm Short Monomount Top Picatinny Rail is a compact mounting accessory designed for shooters using a 40 mm Monomount and wanting extra space for compatible rail-mounted equipment. Instead of changing the main optic mount or adding a separate clamp elsewhere on the rifle, this accessory places a short Picatinny section directly on top of the mount, creating a tidy and central mounting position.

That layout is useful when the goal is to keep accessories close to the optic line and avoid unnecessary protrusions. A short rail format also helps control overall size, which matters on rifles already carrying a scope, bipod or other support equipment. Because the body is made from aluminium and weighs only 50.00 g, it adds function without noticeably affecting rifle balance. The black finish keeps the appearance consistent with modern scope mounts and tactical rifle setups.

As part of Tier-One’s Monomount accessory ecosystem, this rail is best suited to shooters who prefer a modular rifle configuration but still want a clean, purpose-built fit. It is not a universal workaround; it is a dedicated mounting solution for the correct Monomount size, which is exactly why it appeals to users who value secure integration and a more streamlined overall setup.

About Tier-One

Tier-One was incorporated in early 2008 in the United Kingdom. The company focuses on rifle scope mounts, moderators, bipods and related shooting accessories, with an emphasis on precision-engineered components for serious rifle use. A defining part of its manufacturing approach is in-house production on its own five-axis CNC machines, which supports the tight tolerances expected from mounting hardware and other rifle components.

The company is also known for the Monomount, its one-piece rifle scope mounting system, and it has manufactured precision scope rings for Zeiss USA. Beyond its own branded products, Tier-One has produced OEM components for Blaser, Sauer, AI and March. That background gives the brand a strong reputation in the mounting and rifle-accessory category, where consistency, machining quality and repeatable fit matter as much as the basic design itself.

Main Features

• Manufacturer: Tier-One
• Series: Tier-One Accessories
• Made in: United Kingdom
• Warranty: 10 years
• Weight: 50.00 g
• Material: Aluminium
• Accessory type: Mounts
• Color: Black

Warranty

Tier-One provides a 10-year warranty for this mounting accessory. A stated multi-year warranty is especially relevant for scope-mount components, where long-term dimensional stability and dependable fit are important to maintaining a consistent rifle setup.