This video breaks down the National Institute of Justice (NIJ) body armor standards into five levels based on ballistic performance. It explains that as performance increases, so does the level. The instructor notes that Level IIA and Level II are handgun-rated but less common due to advancements in materials, with most consumers and companies opting for Level IIIA and above.
This video explains the "Level 3 Plus" designation for body armor, which emerged to bridge the gap between Level 3 and Level 4 standards. Level 3 armor stops common handgun rounds and some rifle rounds, while Level 4 requires stopping an M2 AP or .30-06 AP round. Level 3 Plus armor signifies protection exceeding Level 3 but not meeting the stringent Level 4 requirements, often addressing threats like M855 green tip rounds or high-velocity projectiles above 2780 feet per second.
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