3 slot picatinny rail attached to a tactical helmet arc rail adapter. You can use it to attach a camera, flashlight or battery pack.
I have a camera coming up to mount to this. Cool thing is at the time this was published the camera was less than 7 dollars and it records in 1080p. Hopefully have that up in a couple of days/
This is a combination remix of the two items I listed here.
I simply combined them using Rhino.