Rusan Q-R adapter M52x0.75 for Ø48 mm (ARM52-48)

What it is and what it's for
The Rusan ARM52-48 is a clamping (Q-R) adapter designed to mount night vision, thermal devices and eyepieces with an M52x0.75 thread onto objectives with a 48 mm outer diameter. It provides a threaded interface and Rusan clamping solution for fastening these devices to the objective.

Key features
Thread input: M52 x 0.75 (ARM52 standard). Outer diameter for mounting: 48 mm (ARM52-48). Weight: 0.164 kg. The upper part that houses the NV/thermal device is made from a high-grade aluminium alloy. The 2017 redesign reduced wall thickness across the family from 2.5 mm to 2.0 mm. For sizes 47 mm and above there is preparation for a Weaver rail; ARM52-48 meets this requirement. From 01.09.2020 adapters of 48 mm and larger include the “Silent” feature (internal tape to reduce noise).

Compatibility
Example compatible devices for the ARM52 size, including models such as Liemke Luchs 1 & 2, Liemke Merlin 35, Night Pearl Seer, Cono Seer, Leica Calonox 2, Guide TAxxx, Burris BTC, JSA, Nitehog Viper, Steiner Nighthunter C35, Lahoux Clip 35 & 50. These are examples and not an exhaustive compatibility list.

Mounting and related accessories
Weaver rail options exist for the ARM52 family (WRA-9 / WRA-17 / WRA-25). The ordering code for the family is ARM52-xx (for example ARM52-48).