Gen 4 Glock 19 Changes

J

jman841

New member
Hello,

I have not posted on here or been much into firearms for a few years now due to serving in the military. I am finally back in the states and have my firearms back.

I went shooting a few weeks ago with my Gen 4 Glock 19 that I purchased in late 2010 or early 2011. I have replaced the old 0 3 spring with the 0 4 spring then the new 0 4 1 spring (or whatever the latest numbers are) but was still having serious issues with ejection. The ejection was erratic, sometimes hitting me in the face, and sometimes causing the bullets to get caught during ejection and not properly cycling the firearm.

From my research it seems that glock has updated the ejector as well with part number 30275 (Stamped 30274) instead of the old 336 which is currently in my pistol.

It seems that if I change this piece the issues will be resolved and I will no longer have any reliability or ejection issues with this pistol.

I called Glock and asked about this and they told me to go to a certified glock armorer and they can fix it for me, however, since I can order the part for $10 shipped and most armorers are charging $25+ I think I will just do it myself. These guns are very simple to work on and there are plenty of instructions and manuals on how to disassemble and reassemble them.

So, my questions is, What else has changed? Is there any other parts besides the ejector and the springs that have been updated since the first run releases of the Gen 4 Glock 19's?

I also plan to get the Advantage Arms .22lr conversion kit for this pistol and put some night sites on it. Any comments on these features?

Thank you!
 
As I recall, just the recoil spring assembly, 0-4-3;
and the 30274 ejector, which will be included with the 30275 trigger mechanism housing.

There was a minor frame change to add a little "nub" for a mounting point for the beavertail backstraps. The latest Gen4 Glocks come with 4 backstraps now.
 
19 Gen 3 vs 4

I don't know why but I shoot at paper better with my Gen 3's than my Gen 4's. That is at 7 yards and with a 3.5 # trigger on both. Both have Glock night sights and I have gotten rid of the regular Glock U sights as I found I shoot better with the night sights. That goes for the Glock 26 also even though both Gen 3 and Gen4 look to have the same 2 stage spring.
 
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OP - I have older Gen4 Glocks that had ejection issues. While the 30274 ejector solved the FTE issues, all of my Glocks from that era eventually crapped out and decided to launch brass at my noggin on a regular basis.

The only way I've been able to fix the brass to the face (BTF) is with the Apex Tactical extractor for Gen4's.

I also have a 2013 G17 Gen4 that's started to launch brass at my face, so it'll probably be getting an new extractor as well.
 
Thanks for the heads up.

It is somewhat disappointing. I like how glocks shoot as their low bore axis keeps the muzzle flip down much more than all the other pistols I have shot, but, I bought it mainly for it's versatility and reliability. It seems the Gen 4 has been a disappointment with the reliability.

If the ejector does not fix the problem I will get the extractor as well, just sucks to have to upgrade "perfection"
 
I know very little about Glocks, but I have a question.
As Glocks are supposed to be very reliable, why would you need to (or want to) change springs?
 
I know very little about Glocks, but I have a question.
As Glocks are supposed to be very reliable, why would you need to (or want to) change springs?
Click to expand...

Generally speaking, you don't. However, some early 9mm Gen4 Glocks had ejection problems, which many attribute to too heavy a recoil spring combined with the use of weak underpowered ammo. The fix by Glock was a lighter weight recoil spring revision which all Glocks now (and have been for quite some time) ship with.
 
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