Saiga-12

The Saiga-12 is a Semi-Auto shotgun which makes an appearance in some Zombie maps. It can only be obtained in the Mystery Box.

Effectiveness
The Saiga-12 is considered more superior than the other Shotguns because of it's high damage. It is a one hit kill till round 16.

Pack-a-Punch
When upgraded it becomes "Super 12 Gauge Shotgun" obtaining a larger magazine, Incendiary Rounds and increased ammo capacity.