Description

The Rusan ARM52-56 is a staple for hunters using mid-sized optics. The 56mm size is frequently required for riflescopes with a 50mm objective lens, as the outer housing usually adds several millimeters to the glass diameter.

Rusan is widely considered the industry standard because of its zero-play construction. The adapter features an internal blue anti-friction lining that prevents the unit from rotating during heavy recoil and protects the scope’s tube from scratches. The “one-piece” design means there are no flimsy plastic inserts to lose or break in the field. The signature blue QR lever is tension-adjustable, allowing you to fine-tune the clamping force for a perfect, repeatable “return-to-zero” every time you mount your thermal device.