GEN 2 UNIVERSAL SCOPECAM ADAPTER / UNI-2 - Scope)Cam Adapter
Side Shot GoPro mount - 3 Gun Tactical
Outdoor Mount Adapter for Rifle Scope Smartphone Phone Camera Mount | eBay
Amazon.com: SOLOMARK Rifle Scope Smartphone Adapter, Quick Telescopic Focus Adjuster and Wrap Gun Scope (Out Diameter of Eyepiece Within 37-46mm) Adapter Record Hunting Moment by Phone : Sports & Outdoors