Rusan Reducing Ring for Electrooptic (M46x0.75)

• M52x0.75 to M46x0.75 thread conversion: lets a compatible thermal clip-on with an M46x0.75 interface be matched to a larger M52x0.75 adapter system, making it easier to integrate specific devices into an existing mounting setup.
• Made for clip-on use: built as part of a dedicated adapter system for night-vision and thermal clip-on equipment, so it supports a clean, purpose-built connection rather than an improvised fit.
• Steel construction: the steel body adds thread strength and wear resistance, which matters when the ring is installed, removed, or reconfigured between devices and riflescopes.
• Low 50.00 g weight: adds very little mass to the front-end mounting arrangement, helping keep the clip-on setup compact and easier to manage in the field.
• Counter nut and wrench included: the supplied hardware helps with correct positioning and installation, reducing setup time when building a complete adapter combination.

About the Rusan Accessories Series

Rusan Accessories is the part of the Rusan range dedicated to the practical details of mounting night-vision and thermal clip-on devices to riflescopes. The series covers not only mounts and rails, but also the smaller interface components that make a clip-on system adaptable to different devices and thread standards. A key idea behind the range is flexibility: conventional and modular adapter systems allow one clip-on device to be shared across multiple rifles or matched with different optics without rebuilding the entire setup.

Within this family, reduction rings and related adapter parts serve an important role. They let users bridge different thread formats so that a compatible clip-on device can be integrated into a wider Rusan mounting solution. Rusan introduced its original clip-on adapter to the global market in 2009, and the company later expanded the concept with a modular adapter prototype completed in 2020. That development path gives the series a clear identity: robust metal parts, system compatibility, and a focus on repeatable alignment for hunting optics and other clip-on applications where secure fit matters as much as speed.

About the Rusan Reducing Ring for Electrooptic (M46x0.75)

The Rusan Reducing Ring for Electrooptic (M46x0.75) is a dedicated interface part for users building a clip-on mounting setup around a device that uses an M46x0.75 internal thread standard. Its job is straightforward but important: it reduces from M52x0.75 on the outside to M46x0.75 on the inside, allowing the device side of the system to match the correct adapter components without forcing an incorrect thread fit. In practice, that means a more secure mechanical connection and a cleaner way to assemble a thermal clip-on system.

This ring is intended for Electrooptic and other compatible devices that share the same thread pattern. As a reduction ring, it is not a complete mounting solution on its own; it is designed to work as part of a broader Rusan adapter arrangement, typically paired with a suitable Rusan Q-R adapter matched to the day scope. That system approach is useful because it separates the device thread interface from the riflescope-side diameter, making the setup easier to configure correctly.

The ring’s steel construction supports thread durability and stable engagement, while the black finish keeps it visually discreet alongside clip-on equipment. At 50.00 g, it adds only modest weight. The included counter nut and wrench are practical additions, helping with installation and positioning so the adapter assembly can be set up with less trial and error.

About Rusan

Rusan is a Croatian manufacturer with roots in the Rusan family’s metalworking business dating to 1983. The company, Rusan-Mikron, is based in Marija Bistrica, Croatia, and its background in machining is closely tied to its reputation for precisely made firearms and optics-mounting components. Over time, the business expanded from gunsmithing into dedicated production of scope-mounting hardware and related parts for sporting and hunting use.

Today, Rusan manufactures scope mounts, scope rings, Picatinny rails, and firearm tuning products, with a particularly strong presence in adapter systems for night-vision and thermal-imaging devices. The company began producing scope mounts in 1993 and introduced its clip-on sight adapter clamp in 2009, a milestone that helped establish Rusan as a specialist in the clip-on segment. That experience is directly relevant to products like reduction rings and clip-on adapters, where machining accuracy, thread consistency, and dependable fit are essential.

Main Features

• Manufacturer: Rusan
• Series: Rusan Accessories
• Made in: Croatia
• Category: Reducing ring for thermal clip-on devices
• Thread specification: M52x0.75 (outside) to M46x0.75 (inside)
• Compatible devices: Electrooptic and others with this type of thread
• Material: Steel
• Color: Black
• Weight: 50.00 g

Warranty

2 years. This reducing ring is covered by a 2-year warranty.

In the Box

• Reducing ring
• Counter nut
• Wrench