[eaglefrq]

I have a perfectly functioning Gen 3 G26 and a Gen 4 G19 with erratic ejection issues.

I have the new RSA installed and the ejector on the way from Glock.

I heard at one time, the extractors were possibly a problem. Out of curiosity, I pulled the extractors from both guns and they were identical. I swapped them to see if it would make any difference. I tried the snap cap trick before and after the extractor swap and the results appear consistent with successful ejection.

I then ran several magazines through each gun both rapid and slow fire using Winchester 115gr 100 round box to try and eliminate differences between lot numbers. The 26 ran flawlessly with no ejection issues, but the 19 still had the erratic ejection issues.

I'm trying to remember, but I don't think I had any brass to the head while performing the rapid fire test. I believe it was only during the slow fire. I will have to test that this afternoon when I get off work. If it's true, I'm not sure why the rate of fire would make a difference.

I swapped extractors back and in my case, it does not appear that the extractor is the problem. When the new ejector comes in, I will run the same test.

If the problem still occurs, I guess it's time to send it back to Glock, but I'm not sure what they can do since all the parts will have been replaced.

 

[GlockGuyGip]

I have a perfectly functioning Gen 3 G26 and a Gen 4 G19 with erratic ejection issues.

I have the new RSA installed and the ejector on the way from Glock.

I heard at one time, the extractors were possibly a problem. Out of curiosity, I pulled the extractors from both guns and they were identical. I swapped them to see if it would make any difference. I tried the snap cap trick before and after the extractor swap and the results appear consistent with successful ejection.

I then ran several magazines through each gun both rapid and slow fire using Winchester 115gr 100 round box to try and eliminate differences between lot numbers. The 26 ran flawlessly with no ejection issues, but the 19 still had the erratic ejection issues.

I'm trying to remember, but I don't think I had any brass to the head while performing the rapid fire test. I believe it was only during the slow fire. I will have to test that this afternoon when I get off work. If it's true, I'm not sure why the rate of fire would make a difference.

I swapped extractors back and in my case, it does not appear that the extractor is the problem. When the new ejector comes in, I will run the same test.

If the problem still occurs, I guess it's time to send it back to Glock, but I'm not sure what they can do since all the parts will have been replaced.

Interesting thank you for your feedback. I will post more regarding this when I get home.

Sent from my G'zOne Commando.

 

[voyager4520]

My Gen3 G27(NRR prefix) had the ejection problem. I replaced the extractor with a non-LCI 15 degree extractor and it made very little difference. Then I installed the 28926 ejector and it fixed the problem.

My Gen3 G23(GEA prefix) doesn't have the ejection problem. It has one of the older non-"MIM" extractors. I put the extractor from that gun into the slide of my G27 and compared how the extractor sat in both slides. In the G27 slide, the extractor sat slightly further forward as evidenced by a larger gap between the breech face and extractor claw. The forward portion also protruded slightly from the side of the slide, this is not the case with the G23 slide. With the rim of a spent casing under the extractor claw, there's more of a gap between the breech face and extractor claw for the rim of the casing to slide forward and rearward between. The spent casing is also held with noticeably less tension in the G27 slide.

From the markings on the spent casings, the ejector and extractor markings relative to the firing pin drag mark on the primer, it looks as through the problem was that the extractor was not holding the rim of the casing to the breech face so the casing was allowed to drop lower before the ejector hit it. The extractor claw was still forward of the rim, but only the bottom corner of the claw made a marking on the rim. Because the casing sits lower than it should when the ejector hits it, the casing pivots right and the case mouth impacts the slide just below the ejection port opening. This causes the triangular scrape/dent at the case mouth and corresponding brass dust collecting on that area of the ejection port. The casing then pivots upward and the rim of the casing comes out from under the extractor claw early. Then the casing is left to bounce around in the ejection port any number of ways.

The new ejector has a rearward tilt to the face, which acts to raise the case mouth of the spent casing earlier and help the case mouth clear the ejection port.

I believe in some cases, the cause is simply that the extractor is out of spec and doesn't move freely enough. In some other cases however, like mine, I believe the cut-out in the slide which holds the extractor was not positioned correctly.

 

[ColCol]

You're a Glock armorer and haven't figured out your own problems? Not being cute but curious. I know that no one can know all there is to know about any particular facet of any firearm and that's why I've always disliked the term, "expert" as no one knows it all I don't care who/what you are.

Case in point. My G30SF was having FTRTB problems after successfully gone through 300 rounds. Suddenly problems cropped up with feeding. I gave it to a Glock armorer to mull over and after a week I called him to see where he was with it. He said he'd call me when he figured out what it was. It took a week to figure that out? He finally called and said he'd found an "edge" on the extractor and apparently did whatever he did and told me it was good to go now. Nope-got it back and it was still doing the same thing...inconsistently. I sold that pistol.

I hope you get you problem straightened out.

 

[GlockGuyGip]

You're a Glock armorer and haven't figured out your own problems? Not being cute but curious. I know that no one can know all there is to know about any particular facet of any firearm and that's why I've always disliked the term, "expert" as no one knows it all I don't care who/what you are.

Case in point. My G30SF was having FTRTB problems after successfully gone through 300 rounds. Suddenly problems cropped up with feeding. I gave it to a Glock armorer to mull over and after a week I called him to see where he was with it. He said he'd call me when he figured out what it was. It took a week to figure that out? He finally called and said he'd found an "edge" on the extractor and apparently did whatever he did and told me it was good to go now. Nope-got it back and it was still doing the same thing...inconsistently. I sold that pistol.

I hope you get you problem straightened out.

I been "gone" for awhile and haven't worked with GLOCKs, let alone even follow what has been going on for along time. I was not aware of gen4 issue till I bought my 1st last week. Now I'm trying to catch up. I haven't had time to fiddle with it yet, I have a full time job and a family. My problem will be solved and I will not sell the firearm.

Sent from my G'zOne Commando.

 

[GlockGuyGip]

Just to add to that, my firearm fires fine and I'm happy with. I would just like to get to the root of this common problem, because it is out of charector and makes me wonder.

Sent from my G'zOne Commando.

 

[AA#5]

I'm sorry but I refuse to reply to this nonsense, but thanks for playing. Lol
Sent from my Commando.

Well said! LOL when someone says, "I'm not trying to attack you," then he attacks you.

 

[GlockGuyGip]

My Gen3 G27(NRR prefix) had the ejection problem. I replaced the extractor with a non-LCI 15 degree extractor and it made very little difference. Then I installed the 28926 ejector and it fixed the problem.

My Gen3 G23(GEA prefix) doesn't have the ejection problem. It has one of the older non-"MIM" extractors. I put the extractor from that gun into the slide of my G27 and compared how the extractor sat in both slides. In the G27 slide, the extractor sat slightly further forward as evidenced by a larger gap between the breech face and extractor claw. The forward portion also protruded slightly from the side of the slide, this is not the case with the G23 slide. With the rim of a spent casing under the extractor claw, there's more of a gap between the breech face and extractor claw for the rim of the casing to slide forward and rearward between. The spent casing is also held with noticeably less tension in the G27 slide.

From the markings on the spent casings, the ejector and extractor markings relative to the firing pin drag mark on the primer, it looks as through the problem was that the extractor was not holding the rim of the casing to the breech face so the casing was allowed to drop lower before the ejector hit it. The extractor claw was still forward of the rim, but only the bottom corner of the claw made a marking on the rim. Because the casing sits lower than it should when the ejector hits it, the casing pivots right and the case mouth impacts the slide just below the ejection port opening. This causes the triangular scrape/dent at the case mouth and corresponding brass dust collecting on that area of the ejection port. The casing then pivots upward and the rim of the casing comes out from under the extractor claw early. Then the casing is left to bounce around in the ejection port any number of ways.

The new ejector has a rearward tilt to the face, which acts to raise the case mouth of the spent casing earlier and help the case mouth clear the ejection port.

I believe in some cases, the cause is simply that the extractor is out of spec and doesn't move freely enough. In some other cases however, like mine, I believe the cut-out in the slide which holds the extractor was not positioned correctly.

This is interesting as well can you post some pictures when you have the time. Ill read this more thoroughly when I get home and get back with you.

Sent from my G'zOne Commando.

 

[voyager4520]

The brass dust collects in these two areas, the lower area is where the case mouth initially scrapes against the slide, the higher area is where the casing apparently bounces off of some time after the rim has come out from under the extractor claw:

This is a drawing of what the dent/scrape looked like with the 1882 ejector:

And with the 28926 ejector there was still a tiny scrape midway down the length of the casing but the case mouth is clearing the ejection port:

You can see how the new ejectors have a rearward tilt to the face:

Here's a thread that shows the marks on the casings and some of the brass marks on the slide:
http://glocktalk.com/forums/showthread.php?t=1399575

 

[guns54]

I dont think we will ever know for sure what it is.My grandsons buddie sent his gen-4-19 back 3 times, They said good to go,all new parts, They paided shiping all 3 times, He called them last week and they are giving him a new -gen 4?

 

[GlockGuyGip]

I dont think we will ever know for sure what it is.My grandsons buddie sent his gen-4-19 back 3 times, They said good to go,all new parts, They paided shiping all 3 times, He called them last week and they are giving him a new -gen 4?

Hmm, I wonder how often this replacing of the entire firearm actually happends. If this is a common fix then that says alot for itself but I can only speculate... I'm still determined though.

Sent from my G'zOne Commando.

 

[GlockGuyGip]

The brass dust collects in these two areas, the lower area is where the case mouth initially scrapes against the slide, the higher area is where the casing apparently bounces off of some time after the rim has come out from under the extractor claw:

This is a drawing of what the dent/scrape looked like with the 1882 ejector:

And with the 28926 ejector there was still a tiny scrape midway down the length of the casing but the case mouth is clearing the ejection port:

You can see how the new ejectors have a rearward tilt to the face:

Here's a thread that shows the marks on the casings and some of the brass marks on the slide:
http://glocktalk.com/forums/showthread.php?t=1399575

After quickly skimming threw a couple post in that linked you posted I see some real good comments, one being that "the new RSA is to blame" someone else says than why are some experiencing the same issues with the newer Gen3's as well. Got me leaning more to one side than the other now.

Voyager when I get home I'll take a look at some of my brass I haven't done that yet, and I'll get back with you.

Sent from my G'zOne Commando.

 

[GlockGuyGip]

In some other cases however, like mine, I believe the cut-out in the slide which holds the extractor was not positioned correctly.

I really hope this is not a possibility.


Sent from my G'zOne Commando.

 

[voyager4520]

The slide of my G27, the gun that had the ejection problem, has some pretty sloppy machining marks. The inside of the EDP channel is wavy with a small lip about 1/8 of an inch in from the rear. The rear of the firing pin channel has a spiral groove running all the way up to the lip where the channel liner seats, the groove is maybe 1/64 of an inch deep. With those dull tooling marks on multiple locations of the slide, it wouldn't surprise me that they cut the extractor cut-out incorrectly.

 

[eaglefrq]

I'm trying to remember, but I don't think I had any brass to the head while performing the rapid fire test. I believe it was only during the slow fire. I will have to test that this afternoon when I get off work. If it's true, I'm not sure why the rate of fire would make a difference.

Well, I test fired the G19 again with the G26 extractor and I still had brass to the head/neck during both slow and rapid fire. I actually had more brass to the head with rapid fire.

Brass was ejecting all over the place, some at 3 O'clock, some at 5 O'clock, some at straight up. Those that went straight up either hit me in the head or luckily flew over the top of my head.

 

[GlockGuyGip]

Quick update: GLOCK shipped me out thew new ejector and "." connector Monday, received it this morning. Swapped the parts out and went straight to the range. Put 200 rounds of 115g Magtech downrange with no malfunctions of any type. Out of the 200 there was 1 casing that flew back and hit my eyepro, not a issue at all for me.

The new ejector did not completely fix the occasional somewhat weak ejection but definitely helped ALOT, so much so i wouldn't even say the problem exists any more. It was consistently about 3 to 4 feet to my 4 o'clock (not as strong as my other GLOCKs but works for me). I intentionally limp-wristed, with slow, moderate and fast rates of fire and still shot great. I also put 17 rounds of 147g Federal Hi-Shok JHP's which shot great as well. As of now this Gen4 G17 has fired 300+ rounds with zero malfunctions. The "." connector was a noticeable difference.

Would I say my G17 still has erratic ejection? No. But I know some will. Seems I was one of the lucky ones who has had a quick and easy fix. :wavey: