The Walther P99 in .357 SIG combines Walther's innovative striker-fired DA/SA hybrid action — featuring a true double-action first shot with subsequent single-action — with the .357 SIG cartridge in a polymer-frame service pistol with a decocker. Type: Semi-Automatic Pistol Action: DA/SA Caliber: .357 SIG Capacity: 12 Year introduced: 1999, Germany Weight: 21.16 oz Overall length: 7.1" Status: Discontinued Intended use: law_enforcement, self_defense