WASP Injector Knife
If stabbing your prey simply isn't enough for you, check out the WASP Injector Knife. Designed for taking out large land and sea predators, this hardcore weapon features a 5.25-inch blade and can hold up to a 24g gas canister, which is used to inject a freezing cold, basketball-sized ball of compressed gas into whatever you've punctured, dropping even the largest of monsters simply and effectively.