NIJ Level 4 ballistic protection represents peak of personal defense. This Body Armour, Bomb Suits , Night Vision , NIJ level 4, STANAG, Combat Helmets, NIJ 3A, Military Supplies, Ballistic Plates, Stab Proof Vests & Gloves, Scopes, Binoculars, Plate Carriers, CPC, EDC, Law Enforcement rigorous standard, established by the National Institute of Jus