The Model 642 CT pairs the best-selling Airweight Centennial with factory Crimson Trace LaserGrips, creating the most popular laser-equipped defensive revolver in American retail. The DAO hammerless design combined with the laser allows point-and-shoot use at defensive distances. Type: Revolver Action: DAO Caliber: .38 Spl +P Capacity: 5 Year introduced: 2004, USA Weight: 15 oz Overall length: 6.3" Status: Active Intended use: Carry, Backup, Home Defense