The Glock 22 was chambered to fire the .40 S&W cartridge but was otherwise the same form and function as the Glock 17.
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The Glock 22 appeared in 1990 and went on to become one of the most popular pistols in use by 2006. The pistol bridged the gap between the .45 caliber and the 9x19mm Parabellum cartridge by providing the operator access to the .40 caliber cartridge. By 2006, the system became a favorite of military, police, security and private civilian operators.
Externally, the Glock 22 takes its appearance from the Glock 17 though it sports some minor revisions to its slide and frame. It fires from a 15-round angled magazine (there is an optional 17-count as well), itself also slightly revised from the Glock 17 design. The pistol grip is ergonomic and the trigger is set within a thick trigger ring with a forward finger rest. Sights are located forward and aft. The action is recoil, double (safe action). Overall length is 186mm (7.32 inches) with the barrel making up 138mm (5.43 inches) of this length. Barrel rifling is right-handed, hexagonal with a 250mm length of twist (9.84 inches). Unloaded weight is 22.92 ounces with an approximate loaded weight of 34.38 ounces.
All values are per the Glock company website.