I see the OP's point. When I didn't know anything about Glocks, I had to go through the same thing. Or someone would offer a Glock in trade and I would have to Google the caliber.
Now I know most of them. I also know after having 6 of them that I don't like them. YMMV.
Now I know most of them. I also know after having 6 of them that I don't like them. YMMV.