Where is the exchange for these? I collected the parts while grinding and wanted to trade for it, but I can't find who I trade with. Any one know?
Master weapons can be traded in at the clan base, from the NPC that sells clan deco. If you cannot locate the NPC in the clan base, then you click the [?] icon located at the top-right corner of an item to open up the Resource and Create window. In this case, you would want to click on your base material which is the weapon.