The Glock 9mm handgun is known as the Glock 17. It is chambered in the standard 9 by 19 millimeter Parabellum ammunition used by the North Atlantic Treaty Organization. It may also be called the Glock "Safe-Action" model.
First produced in 1982, the Glock 17 is one of the most common law enforcement pistols available. It is prized for its consistency and reliability. It features a 17-round detachable box magazine, one of the largest available in a handgun. It is made of lightweight composite materials that significantly reduce the weight for a pistol of its size. As of 2014, it holds a 65 percent market share for pistols purchased for law enforcement.