Russia Says New Combat Suit Will Survive .50 Caliber Bullets
futurism.com
futurism.com
Perhaps they can have some level of immunity to penetration by 12mm + rounds. But this type of bullet has an insane amount of kinetic energy. So it is gonna knock the crap out of you and take you out of the battle, and you may not be effective again for the next battle. At less than 500m, you are probably toast after receiving a M2 round.
Ah well.