{"product_id":"rusan-arm52-adapter-ring-for-fusion-thermal-scopes-30mm-69mm-objective-diameter","title":"Rusan ARM52 Adapter Ring for Fusion Thermal Scopes | 30mm–69mm Objective Diameter","description":"\u003ch2\u003eRusan ARM52 Adapter Ring – Universal Mounting Solution for Fusion Thermal Scopes\u003c\/h2\u003e\n\u003cp\u003eThe Rusan ARM52 adapter ring bridges the gap between your Fusion Thermal scope and virtually any optical device, mounting system, or filter system. Available in objective outer diameters from 30mm to 69mm, the ARM52 is precision-machined in Europe to exacting tolerances that ensure a firm, wobble-free connection with zero image shift. Select your objective lens outer diameter from the dropdown to get the exact adapter your setup requires.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fusion Thermal WTS and AV series scopes with standard objective threads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 30mm through 69mm objective outer diameter (1mm increments)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Precision-machined aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Matte anodized – corrosion and glare resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread engagement:\u003c\/strong\u003e Secure, wobble-free fit with zero image shift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e Europe to ISO manufacturing standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to measure:\u003c\/strong\u003e Measure the outer diameter of your objective lens housing (not the lens glass itself) in millimeters, then select that size from the dropdown 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