Caliber Armor NIJ Certified Level IV Body Armor Package with Phantom Low-Profile Plate CarrierMaximum Threat. Maximum Confidence. Built to Last. The Caliber Armor Level IV Body Armor Package with Phantom Plate Carrier delivers NIJ Certified Level IV ballistic protection in a durable, mission ready setup engineered for the highest threat environments. This package pairs our battle proven Level IV ceramic composite plates with the low profile versatility of the Phantom Plate Carrier. Designed for law enforcement, military personnel, and prepared