The S&W Model 340 PD is an ultralight Scandium-frame J-frame .357 Magnum weighing just 11.4 ounces, the lightest .357 Magnum revolver S&W has produced. Type: Revolver Action: DA/SA Caliber: .357 Mag Capacity: 5 Year introduced: 2000, USA Weight: 11.4 oz Overall length: 6.3" Status: Active Intended use: Concealed Carry, Law Enforcement, Backup