The M&P9 M2.0 with manual thumb safety adds an external ambidextrous thumb safety to the standard M2.0 platform. Some law enforcement agencies and individual buyers prefer the additional mechanical safeguard of a manual safety, particularly for those transitioning from 1911-pattern pistols. The safety is ambidextrous and operates with a positive click in both positions. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2017, USA Weight: 28 oz Overall length: 7.6" Status: Active Intended use: Service, Law Enforcement