Please pay attention to description:
This is high quality Gopro customised low sensor lens with special coating and large wide lens to get maximum light to Gopro camera when using Gopro on the rifle scopes When using it for scope cam such as air gunning, air soft, paintball, hunting …
This will fit directly to Gopro 5-6 and 7 the gopro 5-6-7 has 0.35 pitch, it’s impossible to get this lens with that specifications so we customise our lens to works with 5-6-7 the pitch size of our lens it’s 0.5mm but you still be able to do from half turn to 2 turn to fit this lens to your gopro directly without any notification, it may be bit tight you need bit of pressure to screw the lens to get right Focus.
Please note: The gopro it’s bit included just to show how will be looks after fit the lens.
This video show you how to remove the lens on gopro 3 and 4.