15mm (1/100) scale Leviathan accessory weapon arm was designed to be used with the fast swap arm option for both the (15mm) Leviathan Crusader and Leviathan Mortis and all other variants that share the same chassis.

The Vulkan Cannon was designed to face down the fast moving and shielded Shadokesh walkers. Placing volume fire against one shield or walking rounds on target make this weapon a valuable asset. The Vulkan suffers from underpowered propellant charges and limited ammunition supply, but nothing can lay down a field of fire like the monstrous Vulkan Cannon.