Is Glock 17 the same size as Glock 22?

The Glock 22 had an overall length of 8.03 inches, a height of 5.47 inches, and a width of just 1.26 inches—dimensions identical to the Glock 17. Barrel length, 4.49 inches, was also identical.

Are all Glock frames the same?

The larger component parts of any GLOCK pistol – the frame, the stock and the slide – are interchangeable between different models. Most of the smaller, internal parts of GLOCK pistols are interchangeable as well.