There is another forum that I visit, where they release results of ballistic armour testing. To defeat a rifle projectile even as small as a .223, you need a ballistic panel that is quite dense. One of the designs they have is a panel composed of three layers of ceramic discs overlapping one another. A 10x12 inch panel like that weighs 6 lbs and is almost an inch thick. Metal panels that can defeat the same projectiles are about 10 lbs in weight and one inch thick.
Now you have to ask yourself a question: is he wearing armour that is one inch thick, and if so, what steroids is he taking to carry all that weight?
It seems very doubtful to me.
If he needs to defeat more dangerous projectiles, he will need even thicker armour. The panels I mentioned above are only good for a limited number of hits from standard ammunition fired from AK-47s and similar rifles.
