Daisuke Jigen is a fictional character created by Monkey Punch for his manga series Lupin III, which debuted in Weekly Manga Action on August 10, 1967. Jigen is master thief Arsène Lupin III's right-hand man and an expert marksman. He can perform a 0.3-second quick-draw and has an accuracy that borders on superhuman; he can shoot skeet with a handgun, explode a missile before it hits by targeting the warhead, and deflect another bullet by shooting it in mid-flight.
Known by his trademark black hat and short beard, Jigen's favorite ploy is the trick shooting of a nearby large object, jolting it into the air and finally encumbering an enemy. In the second anime series, it is said that he uses a notch on the hat for aiming (which may or may not be canon). A master of many different firearms, such as revolvers, machine guns, sniper rifles, and even a PTRS Anti-Tank Rifle, his preferred weapon is a Smith & Wesson Model 19 Combat revolver kept in a fabric holster attached to his belt in the back. He prefers the Model 19 due to its stopping power and reliability against misfire. He feels quite not himself without a gun: during an enemy attack in 1987's The Plot of the Fuma Clan, Jigen was voluntarily unarmed (during a wedding) yet instinctively reached back, grabbed at nothing, humorously aimed his empty hand and moved his trigger finger before realizing what he was doing.