The Model 42 Centennial Airweight combines the hammerless Centennial design with an aluminum alloy frame, producing a double-action-only revolver weighing only 12 ounces empty. It was the ultimate lightweight pocket revolver of its era. Type: Revolver Action: Double-Action Caliber: .38 Special Capacity: 5 Year introduced: 1953, USA Weight: 12 oz Overall length: 6.25" Status: Discontinued Intended use: Carry, Concealed Carry