Amazon.com : Sukemichi GoPro Mount Compatible with UTV ATV for 1.75-2 inches Roll Cage and Bars, Aluminum 360 Rotation Camera Stand Car Mount Holder for Sports Camera Gopro Max Hero 9, 8/7/6/5, etc : Electronics
PHONE SKOPE Adapter for GoPro Hero3
Side-Shot GoPro Mount | Utah Airguns
Scope Cam Adapter Kit from Fotodiox Pro - Camera and Smartphone Adapter Mount for Rifle Scopes - Walmart.com
GoPro Digiscope adapter for my range spotting scope : r/functionalprint
Amazon.com : XAegis Gun Mount for Camera Gopro Airsoft Camera Mount Matching with Keymod Rail,Universal 90 Degree Mount for Shooting and Hunting : Electronics