Rusan M52x0.75 Counter Nut with Screw for Self Positioning

• Self-positioning lock-up: The integrated screw lets the counter nut return to the same set position after removal, which helps preserve the alignment of a thermal clip-on setup when the adapter is reinstalled.
• M52x0.75 thread format: This version is made for devices that use the M52x0.75 interface, giving a correct mechanical fit for compatible Rusan adapter-based clip-on combinations.
• Built for conventional adapter use: It is especially useful when a conventional adapter is removed from the device thread and later mounted again, reducing the need to reset the position each time.
• Compact accessory part: As a small dedicated component, it adds a practical positioning function without changing the overall handling of the clip-on device or riflescope setup.
• Rusan-made metal component: Produced in Croatia by Rusan, it matches the company’s adapter ecosystem and is intended to work as a purpose-built accessory rather than a generic substitute.

About the Rusan Accessories Series

Rusan Accessories is the support range around the company’s night-vision and thermal clip-on mounting systems. The series includes adapters, reduction rings, spare parts and accessory components that help connect clip-on devices to riflescopes in a more repeatable and adaptable way. A key idea behind the range is modularity: Rusan developed both conventional and modular adapter systems so one clip-on device can be shared across multiple rifles, or different devices can be matched to different optics with the correct interface parts.

Within this family, the emphasis is on practical mechanical fit rather than cosmetic variation. The range covers parts for specific thread standards, device systems and mounting tasks, which is important for hunters and other users who need a thermal clip-on setup to go back onto the rifle in a consistent way. The series also reflects Rusan’s long involvement with clip-on mounting solutions, including the company’s early adapter designs for night-vision devices and the later development of its modular system. In use, Rusan Accessories serves as the fine-tuning layer of the mounting system, handling the small but important details that affect compatibility, repeatability and day-to-day convenience.

About the Rusan M52x0.75 Counter Nut with Screw for Self Positioning

The Rusan M52x0.75 Counter Nut with Screw for Self Positioning is a small but useful accessory for clip-on users who remove a conventional adapter from the device thread and later reinstall it. Its main purpose is straightforward: once adjusted, the self-positioning screw helps the counter nut return to the same position, so the adapter can be mounted again with a more consistent mechanical reference point. In practice, that saves time and reduces the need to repeat the same setup process after every removal.

This makes the part particularly relevant in thermal clip-on systems where repeatable positioning matters to the overall handling of the setup. The M52x0.75 thread version is intended for compatible devices using that thread standard, so it fits into Rusan’s broader adapter ecosystem without adding unnecessary bulk. Rather than changing the function of the clip-on itself, it improves the way the mounting interface behaves over repeated use.

It is best understood as a refinement for users who value consistency in the field. If a clip-on device is regularly moved between rifles, removed for storage, or detached for transport, a part like this helps keep the setup process more controlled. As with many specialist adapter components, its value lies less in complexity than in making a proven mounting arrangement more repeatable and easier to manage.

About Rusan

Rusan-Mikron is a Croatian manufacturer based in Marija Bistrica, with roots in the Rusan family’s metalworking business dating back to 1983. Željko Rusan opened a gunsmith shop in 1986, and the company began producing scope mounts in 1993. That background in machining and firearms-related engineering still defines the brand’s product focus today.

Rusan is known for making scope mounts, rings, Picatinny rails and firearm tuning products, along with adapter systems for night-vision and thermal-imaging devices. The company introduced its clip-on sight adapter clamp in 2009, a product area that remains closely associated with the brand. In practical terms, Rusan’s reputation in this category comes from producing purpose-built mounting components for specific rifles, optics and clip-on interfaces, with an emphasis on precise fit and mechanical repeatability.

Main Features

• Manufacturer: Rusan
• Series: Rusan Accessories
• Made in: Croatia
• Accessory for: Thermal Clip-on
• Thread: M52x0.75

Warranty

2 years. This accessory is covered by a two-year warranty period.