Introducing the Scope Adapter Block, designed exclusively for the Spot Hogg Fast Eddie 3, 5, and 7 Pin sights. Now, you can seamlessly utilize the UV3 and UV3XL Scopes with the adaptable Scope Adapter Block. Enjoy a perfect fit between the UV3 Scope Rod and the Fast Eddie Series Sights with the Scope Adapter Block. Please note, the UV3 and UV3XL Scopes can be directly used with the single and double pin Fast Eddie Series Sights without requiring the Scope Adapter Block.