Originally Posted by bcraig
From what I have read ,the grip frame size of a Gen 4 G20 without one of the other backstraps installed is smaller than the Gen 3 20, with some even claiming that it is a wee bit smaller than the Gen 3 SF..


The gen 4 G20 frame size is essentially the same dimensions as the gen 3 SF frame. Both are shorter front-back than the gen 2 and non-SF gen 3 frames.

Glock basically figured out partway through gen 3 that they were losing sales on the large frame pistols because the frames were too big for a lot of shooters, so they went with the shorter SF frame and have stuck with that size for gen 4.