AK-74u (fanon)

Modern Zombies Expansion Pack
The AK-74u appears in the Modern Zombies Expansion Pack. It can be bought off the wall for 1000 points, and found in the Mystery Box as well. It is advised to not use this weapon past round 13, unless Pack-a-Punched.

Pack-a-Punched Variant
When Pack-a-Punched it becomes the "AK-115u", getting a higher damage, magazine size, ammo, and ROF.

Trivia

 * This weapon was featured in Call of Duty: Black Ops before it was created.