The 37 is Glock's standard size pistol, chambered in .45 GAP only. They laughingly call the 38 and 39 their "Compact & Subcompact", also in .45 GAP. If you want a Glock in .45 ACP you'll have to go with the 21/30/36 models. The 36 is the Glock of my choosing for a concealed carry gun, but only in a good holster, well, sometimes a belt clip. I find it wayyyyyyy too big for my pockets.
Savage
