Wasp Injector Knife!

This isn't just an ordinary knife, its a powerhouse that shoots freezing CO2 gas and is known as the WASP Injector Knife. Inside the handle, you insert a standard CO2 cartridge, and once screwed back on, the cartridge is activated. Then, with just the press of a button, it instantly discharges freezing CO2 at 800 psi through a gas channel that runs all the way to the tip of the blade. This bad boy was originally designed for scuba divers, and with just one poke and trigger pull, it can explode any predator from the inside.