Staff Writer (Updated: 6/2/2016):
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.