The S&W Pro Series M&P9 4.25-inch 9mm is the compact barrel variant of the Pro Series, offering enhanced trigger and competition sights in a slightly shorter package suitable for USPSA Production and concealed carry cross-training. Type: Semi-Auto Pistol Action: SA Caliber: 9mm Capacity: 17 Year introduced: 2014, USA Weight: 24 oz Overall length: 7.4" Status: Active Intended use: Competition, Carry, Defense