WHY THE GLOCK BECAME America’s Handgun. “Rather than six rounds, the Glock has 17 rounds in the magazine. Instead of a 12-pound trigger pull, like the traditional revolver, it has a trigger pull of slightly more than 5 pounds. That means that someone who is a mediocre shooter or a bad shooter—as many police officers who don’t practice often enough are—will suddenly become more accurate and be more effective.”