The P239 in .40 S&W — a single-stack slim compact in the .40 caliber for shooters who wanted .40 in a thinner carry gun than the double-stack P229. 7+1 capacity from the single-stack .40 S&W magazine. Type: Pistol Action: DA/SA Caliber: .40 S&W Capacity: 7 Year introduced: 1996, USA Weight: 29.5 oz Overall length: 6.6" Status: Discontinued Intended use: carry, concealed_carry