- Compatible with GoPro Hero 9 or 8 or 7 or 6 or 5 or 4 Black, Hero 5 or 4 Session, Hero 3and, DJI Osmo Action, Crosstour, AKASO, Dragon Touch, Campark, APEMAN, and most action cameras. - Designed to fit OPS CORE style helmets and most NVG (Night Vision Goggles) mount bases. Easily attach your camera to any helmet equipped with an NVG plate. - Tool-less installation for convenience. The aluminum fixed mount offers exceptional durability with a stable base, making it ideal for capturing action shots during airsoft tournaments, tactical wargames, hunting, jumps, or other outdoor adventures. - Important Note: If your NVG mount differs in size, consider adding a layer of thin fabric, such as felt, to the base of the mount. This will prevent any wobbling or rattling in the NVG slot, ensuring a secure fit while protecting the mount from scratches. - Enjoy seamless performance and reliability with this robust mounting solution, designed for action enthusiasts seeking stability and ease of use in demanding environments. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.