User blog comment:Zathronas/Analysis by an author: Beacon Ozpin/@comment-24218038-20131210201838/@comment-24116665-20131210220703

Yeah just because Most of every other weapon is half gun doesn't mean every Weapon is.

I think much later we will see a Character that has no Weapon at all and that fight only with his Aura, Like Ren when he was fighting the King Kaijut(or whatever the name was), maybe The Glowing on Cinder's Dress is just an Indicator that Her Aura is activated and she has no weapon at all.