The M9 is a lightweight, semi-automatic pistol manufactured by Beretta and ... service in this program and the M9 replaced the M1911 .45 cal handgun.

40-cal. model. Until now, the pistol has been offered only in 9 mm and .45 ACP. Civilian users will appreciate the increased capacity over the .45 ACP XD-S while still being able to pack a major ...