What Calibers Can Body Armor Stop?
This video from GUNBROS provides an expert-level breakdown of body armor ratings according to NIJ standards. It clarifies that ratings are not a 1-10 scale and details the specific threats each level is designed to stop, from handgun calibers with Level 3A to armor-piercing rifle rounds with Level 4. The presentation highlights the distinction between official NIJ ratings and industry terms like Level 3+.









