For truly assess projectile protection, it is know the various tiers and what mean. These levels, typically designated by specifications like the NIJ or ISO, specify the risks a given armor is designed against. For example, Level II commonly defends against small arms rounds, though more advanced levels like three, IV, and beyond give defense again

NIJ Level 4 ballistic protection represents the pinnacle of personal security, safeguarding against even thedeadliest dangerous threats. Crafted with advanced materials and meticulous engineering, these protective solutions provide an impenetrable barrier against high-velocity projectiles. Whether facing armed assailants or unforeseen violence, NIJ