This AR500 Armor Level III plate is the 10-by-12-inch multi-curve torso plate with FragLock Build-Up coat — SKU 310X12CB. Build-Up is the thicker polyurea layer Armored Republic uses to capture fragmentation instead of just shedding it. The steel core is the Heritage / Level III alloy, Advanced Shooters Cut, made in the USA, with a 20-year maintenance-free shelf life on the sealed plate.

NIJ 0101.06 Level III, independently tested at Oregon Ballistics and H.P. White, is six hits of 7.62×51 M80 at 2,780 fps from 51 feet. Armored Republic also special-threat tests this family against 5.56 M855 / SS109. Their own product pages quote M80 and M855 velocities that spread from 2,750 to 3,000 fps; this listing follows the NIJ six-round M80 figure at 2,780 fps and treats the other numbers as manufacturer special-threat claims.

Current Heritage listing weight is 8.5 pounds (approximately 136 ounces) at 0.34 inch thick. That figure is not split between Base Coat and Build-Up on the live page. This listing is the 10-by-12 multi-curve Build-Up plate only.

• Manufacturer: AR500 Armor (Armored Republic) — Level III 10" × 12" multi-curve, FragLock Build-Up, SKU 310X12CB
• Rating: NIJ 0101.06 Level III (six M80 at 2,780 fps); special-threat M855 per AR500 (velocity figures on manufacturer pages conflict — flagged)
• Size / form: 10 × 12 in; multi-curve; Advanced Shooters Cut
• Coat: FragLock Build-Up
• Empty weight: approximately 136 ounces (8.5 lb on current Heritage listing); thickness 0.34 in