The GoPro Mount is compatible with all GoPro camera models. It allows you to mount one or two GoPro cameras to gun barrels, fishing rods and bow components that are 10 to 23 mm in diameter. The mount is compatible with most single-barrel shotguns, rifles, revolvers, airsoft guns, paintball guns and more. You can mount one camera front-facing and one camera rear-facing. This will ensure that you capture immersive footage from a variety of angles and perspectives. The mount's non-reflective, matte black finish ensures low visibility in the field. Backdoor mounts for GoPro's HERO3, HERO3+, HERO4, and HERO5 Black frames and dive housings are included.