Best Lightweight Level 4 Body Armor | Interceptor Body ...
NATO M855. 5.56x45mm 62 grain steel core (SS109) M855A1. 7.62x63mm M2 AP. Our Duritium® Level IV+HA plate is the best lightweight Level 4 body armor on the planet with an overall weight (including side plates) of 11.8 lbs for a 10"x12" plate.