The M9A4 is the current production evolution of the M9 platform for military and law enforcement customers. It incorporates all M9A3 improvements plus a steel frame option, a flat-faced trigger, optics-ready slide, and 18-round magazines. The M9A4 represents Beretta's acknowledgment that the platform must compete with modern striker-fired pistols on features while retaining the DA/SA operating system that many agencies prefer. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 18 Year introduced: 2021, Italy Weight: 34 oz Overall length: 8.5" Status: Active Military use: Yes Intended use: Military, Law Enforcement, Tactical