Key Points: The Beretta M9 served the U.S. military for decades but garnered mixed reviews. Critics decried its 9mm round’s limited stopping power compared to the .45 caliber M1911 it replaced ...

A video circulating on social media appears to show an Air Force security forces ... Navy firearms instructor firing an M9 in class, a .50 caliber machine gun mounted on an M1 Abrahms tank firing ...