First introduced in 1986, the Colt King Cobra is a medium-sized “V”-framed, double-action revolver featuring a six round cylinder chambered for the .357 Magnum round. The King Cobra design is based upon the earlier Colt Trooper MK V model, with an improved heavy-duty barrel and a thicker, solid rib on top of the barrel. The King Cobra's sighting system consisted of a fixed red front sight insert and an adjustable white rear sight. From its launch until production ceased in 1998, the King Cobra was offered in various barrel lengths, grip types and finishes. The gun was primarily marketed to law enforcement agencies and civilian firearm enthusiasts.