Colt Wesson Smith was one of New York’s notorious hitmen who specializes in terror tactics and extortion towards rival crime syndicates. At a chemical plant in eastern New Jersey, which is owned by a front company for a local hated rival syndicate, the mob sent Smith and his henchmen to steal documents and to blow up the facility. Black Shadow prevented the catastrophe, and tangled with Smith and his crew. Facing Shadow, Smith aimed his gun at the dark avenger, but Shadow disarmed him with his shuriken, accidentally struck a nearby liquid nitrogen container above the mobster and the liquid freeze agent pours over Smith’s right arm. In panic, Smith broke his frozen right arm, losing it in the process. Weeks later, he kidnapped a renowned military expert on cybernetics and nanotechnology, forcing him to give Smith a self-repairing, self-regenerating cybernetic right arm and accompanying nanomachines. Now armed with a hi-tech appendage which can transform into any type of firing projectile weapon by mere thought, with assistance of the nanomachines the scientist injected into him, Smith vows revenge against Shadow and his team and makes a name for himself in the criminal underworld under a new alias, Hand-Gun. Hand-Gun is a dangerous individual who plans crimes and assassinations with the brilliance of a military field general. He also plans a short temper and is prone to violence. His favorite hobby is collecting antique firearms. His favorite food is meatball pasta. Hand-Gun’s cybernetic right arm has the ability to transform into any weapon by nanomachine-assisted thought. It can either be a handgun, a submachine gun, a rocket launcher, a shotgun, a flamethrower, or even a six-barreled gatling gun when used for extreme emergencies. But whatever the type of weapon form it can transform into, it cannot operate without separate ammunition, that is why Hand-Gun bring with him several spare magazine clips and fuel canisters for his appendage. When his right hand, whether is in normal or weapon mode, is cut off by some sharp bladed weapon or malfunctions, his arm, thanks to nanomachines, can regenerate to create a new hand.