The Burning Boomstick.

2* - The Spiral Shotty.

Has one shot.
Fires a tight spread of 3 antigua-like projectiles up to 5 tiles away. Projectiles spread across to two tiles in the end.
Damage: Elemental.
It should look like a simple shotty, only spiral knights style. (Maybe with one of those alchemer energy cell things in place of the barrel.)

3* - The Spiral Disembowler

Has two shots.
Fires a tight spread of 3 antigua-like projectiles up to 5 tiles away. Projectiles spread across two tiles in the end.
Damage: Elemental.
It should look like a slightly better version of the Spiral Shotty, maybe with two energy cells.

4* - The Heavy Disembowler.

Has two shots.
Fires a tight spread of 4 antigua-like projectiles up to 6 tiles away. Projectiles spread across two tiles in the end.
Damage: Elemental, Good chance of weak fire.
It should like a Heavy Duty Disembowler, maybe with a small gas tank.

5* - The Burning Boomstick

Has three shots.
Fires a spread of 6 antigua-like projectiles up to 6 tiles away. Projectiles spread across three tiles in the end.
Damage: Elemental, Strong chance of weak fire.
It should be a seriously badass shotgun. I might even be able to upload a render of a model later.