User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-2089069-20110618095101/@comment-112.202.8.222-20110619024009

7.62x39mm can't chamber AK-74, AK-107. 7.62x39mm can chamber AK-200, which can also chamber 5.56x45mm and 5.45x39mm.