Caliber Armor AR550 Body Armor Package with Phantom Low-Profile Plate Carrier – NIJ Level III+Low Profile. Mission Ready. Built to Move. The Caliber Armor AR550 + Phantom Body Armor Package delivers Level III+ ballistic protection in a rugged, mission ready setup designed for overt use. Built for law enforcement, military personnel, and prepared civilians, this package combines the strength of Caliber Armor AR550 Steel Plates with the versatility of the Phantom Low Profile Plate Carrier. Engineered for performance in high threat environments,