Every Weapon must have a tag that shows that the Weapon is IG. When you purchase a Weapon from a blacksmith or from Logistics with your Production Points, you will be buying this tag to place on your own Weapon. Some magically enchanted Weapons may have only a physrep number; these must be identified before use.
Some items can be strengthened to withstand Shatter effects. This will be marked on the Weapon Tag attached to the Weapon.