User blog comment:KATANAGOD/Call of Duty: Black Ops II In-Depth Preview/@comment-5073640-20120503061000/@comment-4025623-20120503180527

So far, all of the man carried guns we have seen are based off of real firearms, with the possible exception of

What seems to be the main assault rifle is derived from the XM8 and that funky, future pistol is actually real! It's the Kriss Kard, a real-life .45 caliber pistol, but I'm guessing they might make it shoot mini rocket grenades in game.