Gen 4 Problems
 

Is it true for Glock 17 and 19 Gen 4's have some flaws? I've heard one problem with ejection of shells hitting people in the face. Are there any other issues and have they been corrected?

Never heard of or experienced an ejection issue with a Gen 4. Wish I could say the same about M&P.

I heard of this problem. They had a 40 cal spring in the 9mm but it was to stiff. It was changed for a weaker recoil spring. I have heard that there were still some issues with weaker cheap ammo until it was broken in. If you look or call Glock they will tell you that 115 grain ammo is to weak. They designed it for 124grain. That's why people get casings in the face. So I've heard hope it helps.

My G19 gen 4 tosses shells to my face more often than I would like. Somewhere on here, somebody posted that the first Glock 19 gen 4 ejectors, which are marked '336', caused shells to be tossed back face. Glock now has different ejectors in the later pistiols. The poster had his ejector changed and no longer has the problem. I just sent mine to Glock to have the ejector changed. I'll let youse know if it solves the problem after I get it back. I would post a link to the post, but I can't find it. He had a couple of nice photos of the different ejectors in the post too.

The only issue I heard was springs breaking.

Look up hickcock45 on YouTube about the gen 4 you talks about it and shows you the one he has.

I heard the same thing, isn't there a tungsten replacement to fix that problem?

I have seen that one. His reviews are great

My son purchased an early G30 Gen 4 and had numerous problems with it. Erratic ejection (including in your face), feed issues and and sight issues. Apparently, his had QC issues beyond the more commonly heard ejection.

Sent it back to Glock and they sent him a completely new firearm. New serial number so he had to do the FFL paperwork over again, but the second G30 had no issues. He got an extra couple of mags and a sorry.

Extra mags? Can't beat that with a stick.