half million does not pose a threat to the public. but as the military says. you have to have other stuff to make it dangerous and you have to know how to use it. it's not something the average joe can attach their gun to and become instant rambo. by it's clearly making the army very uneasy. >> you have scopes because you want to see that target more clearly. you have night vision goggles base you want to own the night as the army has for years and years. you want to conduct operations in complete blackout conditions. complete nighttime but it looks like the day through those goggles. so you can take advantage of your enemy in situations like that. >> reporter: you can take advantage of the enemy and the enemy hopefully wouldn't be able to take advantage of you it many widely available on the open market. night vision goggles. but not military grade equipment. the military gets the best of