The world's first double-action revolver with a swing-out cylinder, a revolutionary advance in revolver design. The 1889 Navy established the template for all modern double-action revolvers. Type: Revolver Action: Double-Action Caliber: 38 Colt Capacity: 6 Year introduced: 1889, USA Weight: 32 oz Overall length: 8.5" Status: Discontinued Intended use: Military Service, Law Enforcement