The M&P45 M2.0 with a 4.6-inch barrel, slightly longer than the standard 4.5-inch Gen1, providing marginally increased velocity and a longer sight radius. Available as an alternative barrel length in the M&P45 M2.0 lineup. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 10 Year introduced: 2018, USA Weight: 27 oz Overall length: 8.05" Status: Active Intended use: duty, law_enforcement, home_defense