hey guys, to do this glitch you need the 10 class sets from the store. So what you do is make a class setup with your gun in then change to a different class set then put what attachments you want on it, then go back to your other class set prestige gun and then switch to the class set with attachments and you still have them and they're usable ingame. Add my gt if you have any problems GT- MGE X R34P3R