Fusion Thermal Rusan Adapter 42mm Features The Fusion Thermal Rusan Adapter 42mm delivers concentric alignment and dependable retention between the rifle scope's objective and the attached clip-on device. Its precision-machined construction supports proper eye relief and balance without adding unnecessary bulk to the setup. The streamlined design ensures compatibility with a variety of thermal and night vision clip-on systems where a 42mm objective interface is required. Durable and repeatable in performance this adapter is suitable for hunting tactical and professional use. Fusion Thermal Rusan Adapter 42mm Specifications a fa fa Manufacturer: Fusion Thermal a fa fa Model: Rusan Adapter a fa fa Outside Diameter Fit: 42mm a fa fa Compatible Fit: Scope objective lens bells with 42mm outside diameter a fa fa Intended Use: Clip-on optic interface Rusan Adapter Fitment Chart