(sound of referee whistle)
OK- some of you are using auto correct that is messing up. The rest of you may be posting while drunk.
Service members are issued items of clothing. In general, when they leave the service, they may keep those.
They are also issued items of EQUIPMENT. Stuff that belongs to the govt. The service member does NOT own the radio, rifle, binoculars, rucksack, canteen- or helmet. When they are no longer using it, the govt wants it back.
While there is no broad Federal law against selling armor and helmets (in the US- export is another matter) you may not sell or give away what you do not own. And those helmets are not cheap.
What we have here is... failure- to communicate.