The Model 340PD uses a scandium frame and titanium cylinder to achieve a weight of just 12.0 ounces in .357 Magnum. The matte gray scandium finish is visually distinctive from the black 340M&P. Type: Revolver Action: DAO Caliber: .357 Mag Capacity: 5 Year introduced: 2000, USA Weight: 12 oz Overall length: 6.3" Status: Active Intended use: Carry, Backup, Trail