Yeah, I believe it's a tolerance stacking issue between the ejector, extractor and RSA. If you get the wrong combination, headaches.
Of course I'm only going to be about 10% surprised if there is a slide issue as well.
I think Glock blew the opportunity to make some good changes, and instead made changes that don't matter.
The texture = better, that's good
Interchangeable backstraps....probably good, but seriously, no beavertail option? Come on
The finger grooves are still there instead of a flat, grippy surface, that should have been obvious
The trigger guard STILL punches you in the knuckle and has that stupid hook on the front for no good reason, although this is less relevant now that so many guys have lights on their guns now.
I have said this before but ONCE the fix the gen 4 issues, they should put out a G17 Pro model with:
Beavertail backstraps
Vickers mag and slide releases
the cheapest possible sights because everyone will replace them after 4 seconds of owning the gun
6 mags
A relieved, contoured trigger guard
CT grips
That I would buy.