Rusan Q-R adapter M52x0.75 for Ø45 mm (ARM52-45)

What it is and what it is for

The Rusan ARM52-45 is a Q-R adapter intended to couple secondary optical devices (clip-on / secondary optics) to sights that use an M52x0.75 thread. The suffix "-45" identifies this size within the ARM52 product family.

Key characteristics

The adapter features an M52x0.75 connection thread and carries the 45 mm designation for this variant. It has a weight of 0.164 kg and a typical clamping length of 37 mm.

Compatibility

Compatible with devices that have an M52x0.75 thread and with clip-on or secondary optical systems made for that thread. The code ARM52-45 indicates the external objective diameter that the adapter is intended to match.

Important notes

Use the full designation ARM52-45 to ensure correct size matching when selecting the adapter for a specific optic.