The original M&P Shield launched the modern single-stack micro-compact 9mm category. At its introduction it was the slimmest, most carry-friendly full-power 9mm on the market, and it became one of the best-selling handguns in American history. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 8 Year introduced: 2012, USA Weight: 19 oz Overall length: 6.1" Status: Discontinued Intended use: carry, concealed carry