Classic Version Helmet Base Adapter Fixed Mount Hunting CS NVG Bracket for GoPro Hero11 Black / HERO10 Black /9 Black /8 Black /7 /6 /5 /5 Session /4 Session /4 /3+ /3 /2 /1, DJI Osmo Action and Other Action Cameras

1. Material: Aluminum alloy
2. Process: CNC machining, anodizing
3. Upgraded version: directly realize the tightening of the thumb screw
4. Classic model: need to be tightened and reinforced with a wrench
5. Need to be fixed with screw and nut
6. The bayonet is thin, easy to screw the screw, more stable, and the waterproof case is not easy to loosen