I’m trying to mount an action cam to my FAST airsoft helmet, and I’ve got the j-hook baseplate already installed, but with just the baseplate the camera’s FOV is still way too high.

I cannot bring the camera lower than this using just the baseplate, so I thought I’d just buy an extension that will let me swivel the camera further down, but I tried searching for it and couldn’t find anything.

This is how I’ve got the camera set up now, and this is how I want it to be. I need the green part, which is just a male-to-female extension part, but I don’t exactly know how to search for it, as anything I try comes up blank. I know this part exists, because I’ve seen it a few times before, and of course right as I try to search for it, it conveniently disappears as if it had never existed. Can anyone help me out?

EDIT: Thanks for the answers! Simply searching “gopro mount extension” was enough to find what I needed. I feel stupid now.