User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-2089069-20110618095101/@comment-1850701-20110619002313

Yeah, but you have to change the barrel and the magazine housing. You also have to use a larger gas tube to accommodate the amount of gas produced. It's really not worth it. You essentially have to make it into a new gun.