J-frame Chief's Special configuration in .22 WMR, 7-shot cylinder, aluminum alloy frame, 1.875-inch barrel. Type: Revolver Action: Double-Action Caliber: .22 WMR Capacity: 7 Year introduced: 2009, USA Weight: 10.8 oz Overall length: 6.25" Status: Active Intended use: Concealed carry, Training, Pest control