The .40 S&W subcompact M&P with a 3-inch barrel and reduced grip frame. Offered agency officers a .40-caliber backup that matched their duty pistol caliber before slim single-stack .40s were available. Type: Pistol Action: Semi-Automatic Caliber: .40 S&W Capacity: 10 Year introduced: 2006, USA Weight: 19.8 oz Overall length: 6.35" Status: Discontinued Intended use: concealed_carry, backup, law_enforcement