NATO adopted the 9x19 Parabellum as their official sidearm in 1955, and the U.S. armed forces exchanged the .forty five ACP with the 9mm as their official cartridge. Many years later on, shooters are still able to find 9mm ammo for sale in nearly every gun retailer.Maintain your firearm tighter. Luke dude Never check with said: New to me. Cheep so