Cimarron's Doc Holliday 1877 Lightning — a reproduction of the Colt Model 1877 double-action revolver, named for the infamous gambler-gunfighter. The Lightning was the first double-action Colt and Doc Holliday's preferred sidearm at the O.K. Corral. Type: Revolver Action: Double-Action Caliber: 38 Special Capacity: 6 Year introduced: 2006, Italy Weight: 24 oz Overall length: 10" Status: Active Intended use: Cowboy Action, Collector, Reenactment