Rusan Modular Adapter for Guide

• Modular clip-on interface: This adapter is built for the Guide mounting standard (M33.5x0.75), giving a secure connection between a compatible thermal clip-on and the riflescope-side adapter ring for repeatable alignment in the field.
• One device, multiple optics: As part of the Rusan modular system, it helps turn a clip-on setup into a more flexible platform, making it easier to move a compatible thermal device between riflescopes with different outer diameters.
• Steel construction: The steel body provides the rigidity needed for a mounting component, helping the connection stay stable during handling, transport, and repeated installation cycles.
• Broad scope-size compatibility: When paired with the correct rear adapter component, it supports a wide range of riflescope diameters from 30 mm to 67 mm, which simplifies fitting across different optics.
• Purpose-built for thermal clip-ons: Designed specifically for thermal clip-on use, it forms part of a practical front-mounting solution that preserves the familiar handling of the day scope.

About the Rusan Accessories Series

Rusan Accessories is the part of the Rusan range dedicated to practical mounting and interface components for night-vision and thermal clip-on devices. The series includes adapters, reduction rings, and related parts that let shooters connect clip-on systems to riflescopes in a way that suits real field use rather than a single fixed setup. A key idea behind the range is flexibility: the modular system was developed so that one clip-on device can be shared across multiple rifles, or different clip-on units can be matched with different optics without replacing the whole mounting concept.

Within the wider Rusan lineup, this series sits alongside the company’s scope mounts, rings, and rails, but it focuses more specifically on the interface between the observation or aiming device and the riflescope. The modular-adapter concept, finalized after the first prototype work in 2020, gives users a system-based approach instead of a one-piece solution. That matters for hunters and other users who run thermal clip-ons on more than one rifle, because it reduces setup duplication while keeping the mounting arrangement organized, repeatable, and easier to adapt as equipment changes.

About the Rusan Modular Adapter for Guide

The Rusan Modular Adapter for Guide is the device-side component of the modular mounting system for Guide-compatible thermal clip-ons with an M33.5x0.75 interface. Its job is straightforward but important: it creates the front connection point that allows the thermal attachment to join the riflescope-side adapter component. In practice, that makes the clip-on setup easier to configure around the optic already on the rifle, instead of forcing the user into a single dedicated mount size.

This model is especially useful for shooters who run thermal clip-ons across more than one daytime optic. Because the rear side of the system can be matched to many riflescope diameters, the same Guide-compatible clip-on can be integrated into a broader equipment setup with less duplication of complete adapters. The steel construction supports that role well, providing the stiffness expected from a mounting part that must hold alignment consistently through repeated fitting and removal.

Its black finish keeps the adapter visually discreet on a hunting or observation rifle, while the compact, purpose-built form stays focused on compatibility rather than unnecessary bulk. The practical advantage of this modular approach is not only fit, but also logistics: once a user is invested in the Rusan system, changing riflescope diameters or reorganizing a clip-on between rifles becomes simpler. For anyone using a Guide thermal clip-on and wanting a more adaptable mounting arrangement, this adapter is the key device-specific link in that system.

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 explains why Rusan is closely associated with mounting solutions and precision-machined firearm accessories rather than general sporting goods.

Today, the company produces scope mounts, scope rings, Picatinny rails, and firearm tuning products, along with adapter systems for night-vision and thermal-imaging devices. Rusan introduced its clip-on sight adapter clamp in 2009, and that long involvement in clip-on mounting systems is directly relevant to products such as this one. The brand is particularly known for practical mechanical design, broad rifle compatibility, and a product range built around the real fitting requirements of hunting optics and thermal attachments.

Main Features

• Manufacturer: Rusan
• Series: Rusan Accessories
• Made in: Croatia
• Material: Steel
• Color: Black
• Accessory type: Thermal Clip-on adapter
• Front compatibility: Guide Mounting Standard (M33.5x0.75)
• Rear compatibility: 30 mm, 34 mm, 36 mm, 47 mm, 48 mm, 50 mm, 51 mm, 52 mm, 53 mm, 54 mm, 56 mm, 57 mm, 58 mm, 58.4 mm, 59 mm, 60 mm, 61 mm, 62 mm, 63 mm, 63.5 mm, 64 mm, 65 mm, 66 mm, 67 mm

Warranty

Rusan provides a 10-year warranty for this adapter. That long coverage period suits a steel mounting component intended for repeated installation and regular field use.