40k RPG Master Armoury -With Calamity Vent

Requirements
Weapon category	Ranged
Weapon class	Basic, Heavy, Mounted, Pistol, Thrown
Weapon type	Exotic, Plasma
Modifiers
Damage type	Energy
Special effect	On Overheat Roll 1D10 On 4+ It Keeps Functioning
Aquisition
Cost	0
Availability	Very Rare
Source	Rogue Trader - Into the Storm pg. 127