A Zombie weapon for sure. When fighting zombies you have to think radically. This is cutting edge radical anti-zombie innovation. I love it. That's why I am duct-taping a chainsaw to the barrel of my rifle.
(BTW, in the anti-Zombie army I am forming here in the sub-tropics, prospective "operators" must swear allegiance to The Beer God and take an oath to never return from the dead.)