Board Thread:Speculation House/@comment-67.167.27.143-20130818035328/@comment-17720343-20130828081121

MakiKuronami wrote: Teravor wrote: It's probably something along the lines of a Firearms enthusiast hanging out in a gun shop. That.. doesn't really make sense. Dust shops don't sell weapons. Sure, weapon magazines, but not weapons.

And there's another thing to note that Ruby herself has below average knowledge of Dust. So it really wouldn't interest her, kinda making your analogy a bit silly. Mabye she was buying ammo? given the Raw power that RWBYverse weapons seem to have, i theorize that they use dust instead of gunpowder for propellant.