Full Metal Jacket Knuckle Bullet Knife - Tophatter's Guns'N'Weapons StoreBuilt with a solid construction out of zinc aluminum this knuckle can throw down some harsh blows all the while protecting the users hands. The palm bracer is designed to mimic a rifle cartridge while being able to brace for impact. Stylish and effective if you ask me. But this puppy has a secret. Yes, a secret. Hidden in the cartridge is a drop point knife. How cool is that? Just to seal this deal there is also a pin included to turn it into a belt