Rusan Single Ring (Blaser mount), 40 mm

• Single upper ring part: Supplied as one individual ring half, this part is suited to replacing a damaged upper section or completing a specific Blaser ring-mount setup without buying a full mount again.
• 40 mm ring size: Built for optics with a 40 mm main body diameter, it provides the correct fit needed for secure clamping and consistent scope alignment.
• Steel construction: The steel body gives the ring the rigidity needed to hold clamping pressure reliably, which helps the mount stay stable under repeated recoil and field use.
• Blaser-specific configuration: Designed for a Blaser mount arrangement, it matches the geometry used in this mounting system and supports a clean, properly matched repair or replacement.
• Black protective finish: The black finish keeps the part visually discreet and helps it blend with the rest of the mount and riflescope for a uniform setup.

About the Rusan Spare Parts Series

Rusan Spare Parts covers the manufacturer’s replacement and component-level mount parts for shooters who want to maintain, repair or adapt an existing setup rather than replace a complete assembly. Within this family, Rusan groups ring components under its scope-mount and ring parts range, including the upper part of the ring as an individual item. That approach is practical for users who need to replace one damaged section, match a specific ring diameter, or keep a proven mounting system in service.

The series spans multiple diameters, including 26, 30, 34, 35, 36 and 40 mm, and is offered in different height and attachment variants depending on the ring type. This makes the range relevant to hunters and rifle shooters using anything from conventional 1 inch scopes to larger-bodied premium optics. The design philosophy is straightforward: keep the original mount architecture intact, preserve compatibility with the intended base system, and let the user replace only the part that matters. For anyone running Rusan hunting optics mounts or rifle scope rings, the series provides a factory-matched way to restore fit, clamping security and overall mounting consistency.

About the Rusan Single Ring (Blaser mount), 40 mm

The Rusan Single Ring (Blaser mount), 40 mm is a dedicated replacement upper ring part for a Blaser-compatible ring-mount setup. Its main role is simple but important: it lets the user restore or complete a mount built for a 40 mm scope body without changing the entire assembly. That is especially useful when one ring half has been damaged, misplaced, or needs to be matched to an existing mount already fitted to the rifle.

Because this part is made from steel, it is suited to the mechanical demands placed on a scope ring. A rigid upper ring helps maintain even clamping pressure around the optic tube, which matters for keeping the scope secure while avoiding unnecessary stress from an ill-matched replacement part. In practical terms, that supports repeatable alignment and dependable hold on rifles used for hunting or regular range work.

The Blaser mount configuration makes this ring relevant to users who want to keep a Blaser-specific mounting arrangement original and properly matched. The black finish gives it a discreet appearance that integrates cleanly with the rest of the mount. As a single-piece upper part rather than a complete ring set, it is best understood as a precise service component: small in scope, but important for maintaining the integrity and usability of an existing riflescope mounting system.

About Rusan

Rusan grew out of a family metalworking business that dates to 1983, and the company later expanded into firearms-related engineering through a gunsmith shop opened by Željko Rusan in 1986. Scope-mount production began in 1993, establishing the brand’s long-standing focus on mounting solutions and precision-machined shooting accessories. Rusan-Mikron is based in Marija Bistrica, Croatia.

The company is best known for manufacturing scope mounts, scope rings, Picatinny rails and firearm tuning products, alongside adapter systems for night-vision and thermal devices. Rusan introduced its clip-on sight adapter clamp in 2009, reflecting a product range that combines traditional riflescope mounting with modern thermal and night-vision compatibility. That background makes the brand particularly relevant in categories where fit, machining accuracy and repeatable mounting geometry matter.

Main Features

• Manufacturer: Rusan
• Series: Rusan Spare Parts
• Product type: Single upper ring part
• Mount compatibility: Blaser mount
• Ring diameter: 40 mm
• Scope / sight tube size: 25.4 mm - 1"
• Material: Steel
• Extension (KR): KR 0.0 mm
• Bubble level: No
• Color: Black

Warranty

2 years. This Rusan mount part is covered by a 2-year warranty period.