The Colt Python in .357 Magnum with 4-inch barrel in Royal Blue high-polish finish, one of the quintessential American revolvers combining the most popular Python barrel length with Colt premium finish. Type: Revolver Action: Double-Action Caliber: .357 Magnum Capacity: 6 Year introduced: 1955, USA Weight: 38 oz Overall length: 9" Status: Discontinued Intended use: Collecting, Law Enforcement