The Brain Exploder shows how he adds a Top ARC Rail to his night helmet, allowing him to attach more accessories... "The helmet has come a long way from just protecting your head. In modern day airsoft use it is a whole mobile studio so space is at a premium. I found a solution that adds more mounting options and keeps everything in place. A top mounted ARC rail and some 3D printed accessories is how I chose to organize all the electronics on my head and you too an do the same if you follow this to the point tutorial."