Junkyard Dog MK II is Sol Badguy's main weapon in Guilty Gear Vastedge XT. The sword has a rectangle-shaped blade, and a red and white color scheme. It also has a secondary function as a long-range weapon that can release fire magic in the form of explosive projectiles and concentrated heat beams. It is later upgraded to the Junkyard Dog MK III casing in Guilty Gear Xrd -SIGN-.
Junkyard Dog MK II is the second modification of Fireseal, which further amplifies Sol's fire magic. He constructed the casing with additional features such as the ability to transfigure into a long-range cannon that can fire magical bullets packed with his own flame magic.
- As a coincidence, in the older Guilty Gear games, the Fireseal's appearance resembles a gas lighter (much less so in Guilty Gear 2: Overture), while the Junkyard Dog looks like a Zippo lighter. When the casing of Junkyard Dog is unlocked, it resembles a dragon's maw (likely an intentional reference to Sol's Gear form).