>>136475Their most recent inspection will be noted (as well as when it needs to be re-tested) on a tag/sticker on the tank itself.
They aren't used directly to fire paintballs with, they're used to fill smaller compressed air tanks which are used to fire paintballs.
Also:
>i know nothing of these unitsIf you stole them, while I know you won't care what I think, I think you're scum. Just wanted to let you know that.