Like the ergos enhanced gen 5 the 19x is a slimmed and shortened 19 top on a full sized 17 frame with an accurized barrel. I liked to lump it in with the 4s as that’s what was being produced during that generation. Technically it was a rough draft of the 5.
I’m an FNH fan not Glock koolaid drinker.
I would have to say that you’ve got a few things wrong.
The slide of the 19X is the same size as the 19 in length and width. What they did no the Gen 5 was round the corners of the slide. More so on the front then the rear.
The barrels were changed on the Gen 4 Glocks and mark different from the First 3 Gens.
The barrels were changed again with the G42 & G43.
All Gen 5 guns have the new Marksman barrel. And the 19X is a Gen 5.
The Striker on the 42, 43 and Gen 5 guns are also different then other Glocks.
From left to right:
G45, 19 Gen 3, 19X and an after market Gen 3 Swenson. Sorry, don’t have a Gen 4.
There are also a few changes to the inside of the slides
I’ve also heard a lot of people say that the G45 is just a 19X in black, but this is not spot on. In this pic, look at the shoulder opposite of the extractor. There’s a small cut on the G45. The G45 is the only Glock with this cut as of now. It helps to hold the cartridge in place when the slide is pulled to the rear. To eject a cartridge the slide has to be pulled a little harder to the rear.
Now do I like Glocks? Hell yes. I have trusted my life with them for almost 17 years , but I also like other guns too. Sorry, no room for the revolvers.
If you’re one of those guys that tried out one of the first three Gen’s of Glocks and didn’t care for them, you should try out a Gen 4 or 5. You might find that you like the changes.