The S&W Pro Series M&P9 C.O.R.E. 4.25-inch 9mm is the compact-barrel variant of the optics-ready Pro Series, suited for USPSA Carry Optics division with a more carry-friendly 4.25-inch barrel while retaining the C.O.R.E. optics platform and Pro Series trigger. Type: Semi-Auto Pistol Action: SA Caliber: 9mm Capacity: 17 Year introduced: 2015, USA Weight: 26.5 oz Overall length: 7.5" Status: Active Intended use: Competition, Carry Optics, Carry