From their website:
Black Ivan is the prized companion of Kommander Harkevich, a warcaster renowned for his ingenuity on the battlefield. Armed with a bombard and an industrial wrecking claw, Black Ivan is an unparalleled instrument of war that excels at both long-range bombardment and the brutal press of melee.
The Black Ivan warjack upgrade kit is not a complete model. Players will need a Khador heavy warjack plastic kit in addition to this kit.