User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-1187034-20110710200636/@comment-356904-20110712063339

So you want to remove the whole upper receiver, leaving you with just the stock, fire control mechanism and an exposed barrel? Good luck aiming with no iron sights or optics, and good luck not getting third degree burns during sustained fire.