The AK-47 can be found in the Mystery Box in Mob of the Dead. It's ammo count 😗 is 30/240, and it's basically the same gun from the Campaign. When Pack-A-Punched, the AK-47 becomes Reznov's Revenge. Its ammo 😗 count is barely upgraded to 30/270.

The AKS-74U is a weapon appearing as a submachine gun in Call 😗 of Duty 4: Modern Warfare, Call of Duty: Black Ops, Call of Duty: Modern Warfare 3, Call of Duty: Black 😗 Ops II, Call of Duty: Black Ops: Declassified, Call of Duty Online, Call of Duty: Black Ops III, Call of 😗 Duty: Modern Warfare Remastered, Call of Duty: ...