Blundergat

The Blundergat is a Wonder Weapon featured in the Zombies map Mob of the Dead in Call of Duty: Black Ops II, as well as its reimagining, Blood of the Dead, in Call of Duty: Black Ops 4. It is based on civil war-era weaponry, consisting of ideas from the both the Blunderbuss and Gatling gun. Without upgrades, it acts like a single-shot break-action shotgun, with a one-round magazine and 60 in reserve. Unlike a typical shotgun, the pellets spread out in a completely horizontal line. It is also the first and only Wonder Weapon to shoot regular bullets.