Meet WLS-031 AKA "Snaggletooth". The result of an experiment to evolve a firearm, specifically a pistol. When pushing in a section of bone, Snaggletooth fires teeth from its bone cannon at prodigious speed. By manipulating the creature, one can have it shoot a single tooth per trigger pull, short bursts or go fully automatic. You can load it using a special bone container filled with a slurry of calcium and blood or simply feed it. In either case, its digestive system easily turns it into teeth.
Snaggletooth also is a friendly weapon, able to bond with its handler. Field tests have shown it to be surprisingly protective, leading to situations where the type of teeth changes of Snaggletooth's own volition.
