The Delta-12 Chaingun (often referred to as "The D12" by operatives) is a high velocity heavy weapon capable of suppressing multiple targets at once. Recent changes to the firing mechanism have pushed the Delta-12 to the physical limits of a ballistic weapon. An Argent infused piston compresses gas within the firing crucible to over 220,000 PSI. When released, this launches a 15mm Tungsten Slug with muzzle velocity of nearly 5,000 feet per second. The heat generated by this action is syphoned into a thermal gel compound that automatically recharges the 96volt battery pack. This allows the weapon to sustain an almost endless firing cycle, as long as ammunition is present. The Delta-12 Chaingun weighs 45kg, making it a lethal but cumbersome armament.
This 3rd party modification overrides the crucible release safety, allowing the weapon to fire immediately without waiting for maximum rotation. This action, while allowing for instant use, does prolong the time it takes to reach full speed. This modification is unapproved by the UAC.
A secondary firing crucible and compression chamber can be added to the weapon. This modification unbalances the weapon, so remaining stationary while firing is recommended. When used, the weapon fires at twice the normal rate of fire, expending twice the ammunition and superheating the muzzle. Although this modification presents the most powerful suppression in the UAC arsenal (other than the BFG prototype project), the system can and will overheat if not used cautiously.