HERC Prototype Component. Armored plate used inside protective body armor.
A design fresh from HERC R&D section, this plate is far better than civilian or military variants since it is a multi-threat plate made of carbon nanotubes which become rigid as soon as they come in contact with kinetic energy. While the origin or fabrication process is still unknown, survivors have come across these plates during their attacks on Union Island, using the enemy's equipment in their favor.
Found exclusively on Union Island.