Dragon gun

Dragon gun is a type of guns. Known dragon guns are Goblin Dragon Gun, Goblin Dragon Gun, Mark II and Shado-Pan Dragon Gun.

In the RPG
Dragon guns are tinker-created weapons inspired by the deadly breath weapons of dragons. Alchemist's fire is projected by steam pressure from the tip of a blunderbuss-like rifle to cast sheets of flame across a battlefield. Though dragon guns are terrifying and destructive weapons, the backpack tanks that store the liquid ammunition are notoriously fragile. The weapon has a 20 - foot range. A fully-loaded dragon gun carries 15 charges of alchemist's fire. Each charge allows one shot.

Speculation
Dragonmaw Flare Gun may possible by associated.