Glock 17 - Introduced by Glock GMBH in 1980 as an entry into the Austrian military pistol trials, the Glock 17 is a 9mm double action semi-automatic handgun that has a polymer frame and steel slide. Winning the Austrian pistol trial, the G-17 was adopted by the Austrian military and police. This success put Glock on the map and the 17 was quickly adopted for use by other armed forces including the Dutch and Swedish national military.
Glock 22 – The success of the Glock 17 model led Glock to introduce the Glock 22 model in 1990 as a .40 caliber cousin to the G-17 model. The G-22 model is built on the G-17 frame but is chambered in the potent S&W .40 caliber round. Glock saw enormous potential in the .40 caliber and the G-22 was one of the first pistols to be designed for it. As a result, the Glock 22 established an early foothold in the military and law enforcement markets where the .40 was adopted early on.
Glock 31 – Introduced by Glock in 1994, the Glock 31 is chambered for the powerful .357 Sig cartridge. Like the early adoption to the .40 cal, Glock saw the potential for the .357 Sig cartridge and was an early adopter of this caliber as well. Built on a Glock 22 frame, the Glock 31 features a 15 round magazine.
As Glock utilizes a frame family approach, each of the Glock pistols above feature a frame and dimensions so similar that they will all fit in a holster built for the Glock 17 frame. A holster built for the Glock 22 will also fit the Glock 17 and Glock 31, and vice-versa for any of this Glock family of pistols. This is one of the reasons that you commonly see the G-17, G-22, and G-31 listed on the same line for holster fitting purposes.
All prices are in USD.