Four-inch barrel Rhino double-action revolver with the distinctive flat-sided frame and bottom-chamber firing position. The 40DS provides a balance between barrel length and concealability, making it the most popular Rhino configuration. Type: Revolver Action: Double-Action Caliber: .357 Magnum Capacity: 6 Year introduced: 2010, Italy Weight: 28 oz Overall length: 9" Status: Active Intended use: Defense, Concealed Carry, Competition