The Bersa Thunder 9 is a full-size DA/SA 9mm pistol with an alloy frame, 4-inch barrel, and ambidextrous safety/decocker. It scales the Thunder design concept up to 9mm for duty and home defense applications with improved stopping power over the .380 variant. Type: Semi-Auto Pistol Action: DA/SA Caliber: 9mm Capacity: 17 Year introduced: 2001, Argentina Weight: 30 oz Overall length: 7.35" Status: Active Intended use: Duty, Home Defense