Okay, you guys may think this is a silly question but I always seem to forget how to take the weapons out. If anyone could help that would be great :D

Go to the armory and click to edit one of your battle sets. Underneath each item is a button that says "remove" that will completely remove it from your armory. If you have any modification crystals and stuff attached to it though, you'll lose those.

thanks!! manage to get it!!

https://subeta.net/games/battle/weapons.php?act=edit&id=6601