The Model 18 Combat Masterpiece in .22 LR was designed as a training counterpart to the .38 Special Model 15, allowing officers and competitors to practice with identical handling at lower ammunition cost. Its 4-inch barrel and adjustable sights made it ideal for that role. Type: Revolver Action: Double-Action Caliber: .22 LR Capacity: 6 Year introduced: 1949, USA Weight: 36 oz Overall length: 9.25" Status: Discontinued Intended use: Training, Sport, Target