Rusan Q-R adapter M52x0.75 for Ø65 mm (ARM52-65)

What it is and what it does
The Rusan ARM52-65 is a quick-release clamping adapter designed to mount night vision, thermal and clip-on devices with an M52x0.75 thread onto the objective tube of a day scope. The adapter slides over the scope objective and is secured in place with a clamping lever to provide a stable mechanical connection.

Key characteristics
This model is intended for devices with an M52x0.75 thread and for scopes whose objective outer diameter is 65 mm (hence the 65 in the model code). It has a total length of 48 mm and a clamping length of 37 mm for standard models. The adapter is made of aircraft aluminium and its listed weight is 0.164 kg. The interior uses a special grip material to improve retention; the adapter has been successfully tested with calibres such as .338 Lapua Magnum and .416 TYR.

Compatibility
It is designed for direct mounting of equipment with M52x0.75 thread (for example Dedal 540/541/542/546/552, Jahnke DJ-8 NSV, Lahoux D-545/LV-81). It can also be used with other models by means of reducing rings for combinations like Pulsar Core/DFA75/DN55, ATN PS22/PS28, Dipol DN31-34, Guide TA435, Nitehog TIR-M35.