EH, there is some ex nam vet somewhere who can't own a gun because he was depressed in 1969...I do not know him but am sure he exist.
Manedwolf's correct. It has to be judged by a court - take it from a vet who's being treated for PTSD. I don't want to lose all my firearms because of what the VA's giving me, so I have been checking into this supposed threat. It's not there. The GOA screams about it, but the truth is a judge has to find one mentally unfit before they lose their guns, no different than what's already established out there.