http://store.contour.com/ae/us/mounts/helmet-mounts/invt/6260&bklist=icat,4,shop,products,mounts

I was watching Inside combat rescue and the PJs had their contours setup upside down on the arc rail. Compared to the way I currently have mine setup. I might have to test that way out one time to see what its like. Only problem I see with that setup up depending on how you sight your weapon in. You might see the target or you might see the ground.. As you'll see in the vid where one pj looks down the rifle and the camera on the helmet looks as if it pointed to the ground. Here is a link to the video i was watching good stuff.. http://youtu.be/W2SuQRhxiME