The M&P 2.0 Full Size in 9mm with 4.0-inch barrel offers a shorter barrel option for those who want full-grip capacity with a slightly more compact slide. The 4.0-inch barrel is uncommon in the M&P lineup, primarily appearing in special configuration or law enforcement contract variants. All 2.0 features — grip texture, improved trigger, stainless chassis, four palm swells — are retained. Type: Pistol Action: Striker-Fired Caliber: 9mm Capacity: 17 Year introduced: 2017, USA Weight: 24.2 oz Overall length: 7.6" Status: Active Intended use: duty, carry