Osuma Pair of Rings for Osuma Base, 25.4 mm

• 25.4 mm ring size: Built for 1 inch riflescope tubes, these rings provide the correct fit for a wide range of traditional hunting optics without improvised inserts or adapters.
• Osuma base interface: Made for the Osuma Base system, the rings form part of a fixed three-part mounting setup that keeps the scope aligned with the base and lower ring components.
• Aluminium construction: The aluminium body keeps weight down while still providing the rigidity needed for a stable riflescope mounting solution on sporting rifles.
• Black anodized finish: The dark protective surface helps the rings resist everyday handling wear and blends cleanly with modern riflescopes and mounting hardware.
• Broad base compatibility: These upper rings fit Ø 7 mm interface systems used by Osuma, EAW, Optilock and Recknagel style bases, making them practical for repairs, replacements or mount reconfiguration.

About the Osuma Osuma Base Rings Series

Osuma Osuma Base Rings are part of the brand’s fixed riflescope mounting system, developed for shooters who want a straightforward and durable way to secure an optic to a rifle. The series is built around the idea of a three-part assembly consisting of a base, a bottom ring and a top ring, so users can configure or replace individual parts without changing the whole mount. That makes the system especially practical for hunting rifles and general sporting use, where reliability and easy serviceability matter more than unnecessary complexity.

Within the series, Osuma offers ring options for several common scope tube diameters, including 1 inch, 30 mm, 34 mm, 36 mm and 40 mm, as well as different height variants depending on the model. The rings are described as being made from high-grade aluminium with an anodized surface, a combination chosen to keep the mount light while maintaining the stiffness needed for repeatable scope positioning. The series is intended to work with Osuma bases across several rifle and rail platforms, giving it a modular character that suits both new builds and replacement-part use.

About the Osuma Pair of Rings for Osuma Base, 25.4 mm

The Osuma Pair of Rings for Osuma Base, 25.4 mm is the upper ring component for shooters using a 1 inch riflescope tube in the Osuma Base mounting system. This format remains common on many classic hunting scopes, so these rings are a practical choice when replacing worn parts, completing a mount or adapting an existing Osuma setup to a different optic. Because they are made specifically for the Osuma Base arrangement, they are intended to work as part of a matched fixed mount rather than as a universal standalone ring set.

The use of aluminium construction keeps the rings light and well suited to hunting rifles where unnecessary weight at the top of the receiver can affect balance. The black finish gives the rings a discreet appearance and helps them integrate visually with most scopes and bases. With KR 0.0 mm extension, this version is a standard non-extended ring option, making it suitable where the scope already sits in the correct fore-and-aft position on the rifle. Compatibility with Ø 7 mm interface base systems used by Osuma, EAW, Optilock and Recknagel also makes these rings useful as replacement upper parts in existing European-style mounting setups. In practice, this model is best suited to shooters who need a clean, simple and properly matched upper ring pair for a fixed 1 inch scope installation.

About Osuma

Osuma is a Finland-based brand focused primarily on riflescope mounting solutions. Its history goes back to the early 1990s, when the owner developed the first mounts for his own hunting and benchrest shooting needs. That origin is still reflected in the company’s product focus: practical mounting components designed around real rifle use rather than broad accessory branding.

Today, Osuma’s range includes scope mounts, scope rings, rail mounts, red-dot and holosight mounts, suppressors and other shooting accessories. The company states that its products are designed and manufactured in Finland, and its scope rings are known for using aluminium construction with an anodized surface. The brand remains closely associated with modular mounting systems for sporting rifles, and its catalog covers a wide variety of rail and rifle interfaces for shooters who need compatible replacement parts or complete mounting solutions.

Main Features

• Manufacturer: Osuma
• Series: Osuma Osuma Base Rings
• Made in: Finland
• Material: Aluminium
• Extension (KR): KR 0.0 mm
• Scope / sight type: 25.4 mm - 1"
• Color: Black
• Compatibility above: 25.4 mm (1 inch)
• Compatibility below: EAW Ø 7 mm Interface
• Compatibility below: Optilock Ø 7 mm Interface
• Compatibility below: Osuma Ø 7 mm Interface
• Compatibility below: Recknagel Ø 7 mm Interface

Warranty

2 years. This product is covered by a 2-year warranty.