Stainless Centennial Airweight — the most popular carry revolver in the S&W lineup, combining a featherweight alloy frame with stainless barrel and cylinder. Type: Revolver Action: Double-Action Caliber: .38 Special +P Capacity: 5 Year introduced: 1990, USA Weight: 15 oz Overall length: 6.31" Status: Active Intended use: Concealed Carry, Self-Defense