The .40 S&W compact M&P with 3.5-inch barrel and reduced-capacity magazine for civilian and plainclothes carry. Identical frame geometry to the 9mm compact with .40-specific internals and a 10-round magazine. Type: Pistol Action: Semi-Automatic Caliber: .40 S&W Capacity: 10 Year introduced: 2007, USA Weight: 21.9 oz Overall length: 6.7" Status: Discontinued Intended use: concealed_carry, backup, law_enforcement