I voted weapon because wearing them on a kevlar really really sucks. I had the sevens I think they were. with 2 ocular lenses to one objective. Very heavy. The 14 is obviously lighter but youre still trying to line something hanging off the front of your head with optics or sights. If you don't have to wear them don't. Do you have an ir light or laser? What are you doing with the application? I mean just shooting is one thing but if your moving/walking or anything you may want a head or helmet mounted device.