Level IIA
Tested to stop 9mm and .40 S&W ammunition fired from short barrel handguns. No rifle ammunition protection.
Level II
Tested to stop 9mm and .357 Magnum ammunition fired from short barrel handguns. No rifle ammunition protection.
Level IIIA
Tested to stop .357 SIG and .44 Magnum ammunition fired from longer barrel handguns. No rifle ammunition protection.
Level III
Tested to stop 7.62mm FMJ lead core rifle ammunition.
Level IV
Tested to stop .30cal steel core armor piercing rifle ammunition.