The AR500 A1 Body Armor Ballistic Plate is a rugged, steel alloy blend plate that provides level 3+ protection capable of defeating 5.56x45 M855A1 (AP) round at velocities of up to 3,100 FPS, 7.62x51 M61 (AP) round at velocities up to 2800 FPS, and all lesser threats with multi-hit capability. It features a durable FragLock coating, which gives both fragmentation protection and seals the plate to ensure its 20-year shelf life.FeaturesEdge-to-edge multi-hit protection Ballistic steel and alloy blend of 650 hardness on the Brinell scale, with FragLock Coating20 year shelf lifeHelps reduce the dangers of spallingMaintenance-free shelf life