Fusion Thermal Rusan Adapter 40mm Features The Fusion Thermal Rusan Adapter 40mm offers precision machining that promotes concentric alignment between the rifle scope's objective and the attached clip-on device. Its low-profile design supports proper eye relief and balance without adding unnecessary bulk preserving the optic's handling characteristics. Built for durability and repeatable performance this adapter is suitable for hunting tactical and professional applications where secure clip-on integration is required. Simple installation and secure retention make this adapter a dependable solution for Fusion Thermal clip-on configurations that require an interface for scopes with a 40mm objective bell. Fusion Thermal Rusan Adapter 40mm Specifications a fa fa Manufacturer: Fusion Thermal a fa fa Model: Rusan Adapter a fa fa Outside Diameter Fit: 40mm a fa fa Compatible Fit: Scope objective lens bells with 40mm outside diameter a fa fa Intended Use: Clip-on optic interface Rusan Adapter Fitment Chart