One of the most commonly used 7.62 rounds is 7.62×39, which is the caliber used in most AK platform rifles. AKs are one of the most prolific firearms in the entire world, and they are commonly used in the US as well. This is why protection against them is very important. At Ace Link we designed PE + Ceramic Level three plus armor that can easily withstand multiple rounds of 7.62x39mm AK rounds as well as powerful 5.56 M855 AP rounds. It’s very lightweight – only 4.40 lbs! Another common 7.62 caliber round is 7.62×51 NATO, which is also known as .308 Winchester. Level III armor plates are also designed to stop simple full-metal-jacket .308s, however, armor-piercing rounds can not be stopped by standard Level III Armor Plate.