Reprofiled my Gen 3 Glock 19 Ejector

[lamarbrog]

Backstory: I picked up a used Glock 19 Gen 3 with a PUS-series serial number. I had to say used, "pre-owned" may be a better term. It had been shot, but obvious not very much- original anti-seize was still present in certain areas. I started shooting it and after about 800 rounds I began noticing I was taking a lot of casings to the face. Ejection seems strong for the most part- it's just that it is strong right back between my eyes fairly regularly. To remedy the situation, I tried by polishing the sides of the extractor. This actually seemed to make the situation worse. I have taken note of some mild triangular scrapes on my brass, indicating it is hitting the ejection port. They are not big scraped, which (at least I think) supports the fact that ejection is strong, but not where it is supposed to be. The casings seem to be scraping just enough to throw them off their proper path.

Last night I finally got around to trying my hand at ejector tuning. I have no instruction on this at all- I just sort of did what seemed like the logical thing to do.

Below is the ejector as it was originally. Notice how the foremost part of the ejector is on the top-right, viewed from the shooter's perspective.
http://i72.photobucket.com/albums/i190/Lamarbrog/DSCN1108.jpg

And this is what I did after 15 minutes on a whet stone. I worked on the front face, moving the foremost part over to the bottom-left. Hopefully this will change the angle of ejection and fix the problem.
http://i72.photobucket.com/albums/i190/Lamarbrog/DSCN1111.jpg

Tomorrow I will try shooting it. I'll report back with results.

[JHC]

Sounds a lot like what Rogers Shooting School is reported to have done with their Gen 4 loaner guns a year or so back. I look forward to hearing the results.

[EMC]

Looks like it could stab your thumb something fierce. At least from the pictured angle.

[JHC]

Looks like it could stab your thumb something fierce. At least from the pictured angle.

lol it does look a lot like my Recon Tanto. ;)

[lamarbrog]

Oh, it's sharp alright. I wasn't really trying to do that- originally I wanted to use the original ejector face and just hone at an angle to remove the old point. I had my angle slightly off, though, and ended up with an edge on the left side instead of a point on the bottom left. So, I had to take off a little more to get the point I wanted- it is a little sharper than anticipated, but I don't see it becoming an issue.

[lamarbrog]

I shot the pistol this afternoon.

50 rounds of Tulammo ejected almost perfectly. Very consistent and clear ejection.

50 rounds if Winchester ejected much the same, although a little more rearward. Still, not bad.

50 rounds of Tulammo had a partial failure to extract/eject. It was almost as if the extractor lost grip mid-way through the cycle. Very strange malfunction. I don't think it was a result of the modification.

50 rounds of S&B shot nearly every casing right back between my eyes. My friends laughed. I was annoyed.


I have effectively tuned my Glock to eject perfectly with garbage ammo... and to throw brass into my face with moderately hot loads. ... awesome...

Next up, 30274 ejector.

[F-Trooper05]

Oh well, worth a try.

[SecondsCount]

I am not a Glock expert by any means but have learned a thing or two by playing with 1911s. Based on that experience, my thinking is that you should play more with where the ejector strikes the back of the case rather than the shape of the tip. The shape of the ejector tip will change where the case is hit as well but I would think that giving the ejector a slight bend to the left or right would do more.

[lamarbrog]

I am not a Glock expert by any means but have learned a thing or two by playing with 1911s. Based on that experience, my thinking is that you should play more with where the ejector strikes the back of the case rather than the shape of the tip. The shape of the ejector tip will change where the case is hit as well but I would think that giving the ejector a slight bend to the left or right would do more.

That's what I was trying to do by reprofiling the tip- I wanted it to contact on the bottom-left first.

It did not occur to me to attempt to bend the ejector initially, because my experience with another Glock stamped part (slide stop) revealed it to be incredibly brittle.

While I was shooting the abomination I created my coworker who actually is a certified gunsmith and a Glock armorer (instead of just playing one on the internet) mentioned that he had tweaked a customer's Glock 336 ejector by just straightening it out. He simply removed to bend. Apparently it had worked well. He then said "Damn, that thing looks sharp!" followed by "Why did you need to take off so much material?".

So, not one to be outdone, I quickly broke down the frame again, and pulled the ejector out with my handy-dandy Leatherman. Using the multi-tool and a pair of lineman pliers I took the bend out of the ejector.

I had exhausted the supply of S&B I had with me. 50 rounds of Remington and 50 rounds of PMC showed the ejection to be good, though. I'll post an update once I try some S&B.

[lamarbrog]

I was short on time today- I managed to get about half a box of S&B and half a box of Tulammo down range.

Ejection was good. I had one piece of S&B brass skim just the top of my ear muff strap- it wasn't in my face, and that was definitely the exception rather than the rule. The Tulammo was about the same as it has been.

I still will be trying to acquire a 30274 ejector. Hopefully the extractor from LWD will arrive before too long.

[davisj]

Not trying to hijack but since you mentioned a LWD extractor...

After putting a few hundred rounds through my FDE G19 and FDE G17 which were both showing erratic ejection I removed the extractors from both. The G19 had some strange scratches (picture posted earlier in this thread) on the bottom of the extractor and didn’t fall free when removing it. Although the G17 extractor didn’t have the same odd scratches it showed some wear marks as well and would fall free either. I ordered two LWD 9mm extractors which arrived last week. Before installing them I removed the slides from the frames and the barrels from the slides. I slid an empty casing between the installed extractor and breech face of each. On both of the OEMs, the casing was loose and easily fell to the ground. I installed the LWD extractors, which are cast and not MIM, the empty casing was held firmly in place on both guns.

Today I had the chance to shoot both for the first time. I shot 75 rounds through each due to being short on time; 50 rounds each of PMC 115 grain and 25 rounds each of Winchester NATO 124 grain. I began by loading one round and removing the magazine and shot 10 rounds of PMC in each. Out of 20 rounds total there were six stove pipes (4 in the G17 and 2 in the G19) and another four rounds ejected, or more accurately fell out, of the magazine well. The other 10 rounds ejected correctly with 9 ejecting to 4:00 and one rolling back at me weakly at 6:00. This one may have been due to my grip as I was holding the gun in a cup & saucer manner in expectation of the casing falling through the magazine well. The remaining 40 rounds fired through each gun ejected perfectly; high and to my 4:00. I checked the inside wall of the slide at the ejection port and didn’t notice any brass markings indicative of the casing slamming into the wall as it ejected. One of the range officers fired 10 rounds through each gun which allowed me to watch the ejection path and both functioned perfectly.

After finishing off the PMC I switched to Winchester NATO and fired 25 rounds through each gun. Out of these 50 rounds one hit the top of my head but I’m not sure if it struck the wall of the lane I was in first or if it came out high and hot at 6:00. I did have one round fired through the G17 that hit me on the bridge of the nose at +P speed.

I wouldn’t say these guns are now fixed by replacing the OEM with the LWD extractor but the ejection pattern was much more consistent. I haven’t removed the extractors to check for wear as I don’t believe 75 rounds are enough to make a judgment. I plan to shoot several hundred more rounds through each over the next month before I remove the extractors. If they continue to perform consistently I’ll still probably pick up two Apex ejectors when they become available. Hopefully the combination of the two will get these two to be consistent. While annoying, it isn’t a huge problem for me as both of these are range guns. My two carry G19 RTF2s were made in 2009 and neither have these issues. I never thought I’d have to play garage gunsmith on my Glocks (which is why I've never bought a 1911) but if I can get these running I might go crazy and buy myself a Kimber to work on!

[JHC]

Great test and report thanks. I need to point some shooters to your test.

[Slavex]

unloading your gun with an ejector that sharp must be even more fun, if it hits a live primer..........

[lamarbrog]

unloading your gun with an ejector that sharp must be even more fun, if it hits a live primer..........

Not particularly worried. With the bend straightened out, the primer is really pretty far from the ejector. I wouldn't try to carefully eject the cartridge weakly into your hand, because if you slip somehow that might be an issue- but I wouldn't do that anyway. Just cycle the action like a man. :p

[lamarbrog]

I sort of forgot about this thread... but I'll throw out an update since the situation has changed.

I finally got a Lone Wolf ejector and installed it. I can't say I have noticed much of a change in performance from the stock one. The ejector modification seems to have been sufficient.


As far as a 30274 ejector, none of the Glock armorers I work with seem to be very interested in placing an order for one. I have tried calling Glock twice, but after sitting on hold in excess of 30 minutes both times I've given up.

I might try putting a 336 ejector from my Gen2 19 into this Gen3 with the LWD extractor to see if the extractor alone would have fixed it. If it works that way, I'll get a replacement 336 and call it done.

[tmoore912]

You can buy a Gen 4 Lone Wolf or Glock Trigger Housing and it will come with the 30274 Ejector. I had to buy a LW one from Glockparts.com to get a 30274 Ejector. I saw better and consistent ejection in my 3rd Gen G17 after I installed the 30274. I have many more rounds to put through it, before I can say it really worked to fix the problem. I also have a LW Extractor I want to try out to see if I can get more forceful ejection.

[Cool Breeze]

You can buy a Gen 4 Lone Wolf or Glock Trigger Housing and it will come with the 30274 Ejector. I had to buy a LW one from Glockparts.com to get a 30274 Ejector. I saw better and consistent ejection in my 3rd Gen G17 after I installed the 30274. I have many more rounds to put through it, before I can say it really worked to fix the problem. I also have a LW Extractor I want to try out to see if I can get more forceful ejection.


How are you getting the 30274 ejector into a gen3 trigger housing? From my understanding glock i snot selling them that way are they?

[EMC]

How are you getting the 30274 ejector into a gen3 trigger housing? From my understanding glock i snot selling them that way are they?

The ejectors are compatible between housing generations.

[tmoore912]

How are you getting the 30274 ejector into a gen3 trigger housing? From my understanding glock i snot selling them that way are they?

It fits just like a 336 does in the Gen 3 Trigger Housing. Pull it out with some pliers wrapped in tape, or push it out with a flat head screwdriver from behind.

Difference in profile:

http://i265.photobucket.com/albums/ii218/tmoore912/G17%203rd%20Gen/IMG_3480.jpg

http://i265.photobucket.com/albums/ii218/tmoore912/G17%203rd%20Gen/IMG_3488.jpg

[lamarbrog]

You can buy a Gen 4 Lone Wolf or Glock Trigger Housing and it will come with the 30274 Ejector. I had to buy a LW one from Glockparts.com to get a 30274 Ejector. I saw better and consistent ejection in my 3rd Gen G17 after I installed the 30274. I have many more rounds to put through it, before I can say it really worked to fix the problem. I also have a LW Extractor I want to try out to see if I can get more forceful ejection.

I ordered one this afternoon. I'll report back with results once I try it a little.

[Wes Peart]

I shot the pistol this afternoon.

50 rounds of Tulammo ejected almost perfectly. Very consistent and clear ejection.

50 rounds if Winchester ejected much the same, although a little more rearward. Still, not bad.

50 rounds of Tulammo had a partial failure to extract/eject. It was almost as if the extractor lost grip mid-way through the cycle. Very strange malfunction. I don't think it was a result of the modification.

50 rounds of S&B shot nearly every casing right back between my eyes. My friends laughed. I was annoyed.


I have effectively tuned my Glock to eject perfectly with garbage ammo... and to throw brass into my face with moderately hot loads. ... awesome...

Next up, 30274 ejector.

I think the brass in the face thing might have something to do with slide velocity. I've noticed a lot of Euro ammo like S&B and Fiocchi tend to run on the hot side. I have somewhere north of 7K through my Gen 3 19 without a malfunction but if I shoot hot ammo like +P+ every now and again a casing will eject right into my hairline area.

It'd be interesting to see how changing your recoil spring for a slightly heavier or lighter one would affect it.

[JV_]

I think the brass in the face thing might have something to do with slide velocity.It made a big difference in my Gen4 19s.

[lamarbrog]

A Gen4 Glock 9mm trigger housing came in the mail today. I swapped the ejector into my Gen3 Glock19.

A test of 50 rounds using my load of 5.8gr of Herco under a 115gr plated bullet gave good results. Ejection was about 4 o'clock and strong. Obviously, a greater round count with a variety of ammo is going to be necessary to determine if it is a true fix- but things are looking up.

Modifications to date:
Vicker's Slide Stop
Vicker's Magazine Catch
LWD Extractor
30274 Ejector
Rear Sight Turned Around

This pistol is now at 3800 rounds under my care. I'm probably going to give it a thorough cleaning and oiling pretty soon and prepare to attempt the 2000 round challenge. (As of now, I have had some failures with Tulammo and miscellaneous stuff I've found... with good ammo, I have no doubt the pistol will function reliably.)

[5pins]

I think the brass in the face thing might have something to do with slide velocity. I've noticed a lot of Euro ammo like S&B and Fiocchi tend to run on the hot side. I have somewhere north of 7K through my Gen 3 19 without a malfunction but if I shoot hot ammo like +P+ every now and again a casing will eject right into my hairline area.

It'd be interesting to see how changing your recoil spring for a slightly heavier or lighter one would affect it.

My brass in the face has only been with Winchester white box, that is until last week when it happened twice with some Federal 147gr HP. So far the hotter, Fed 115gr +P+, stuff has not been causing me a problem but I have not shot much of it.

I’m going to swap my gen 2 upper and gen 3 upper this weekend and see what happens. I have had my gen 2 since 93 and it has never sent brass in my face. I have also ordered the older extractor and spring loaded bearing from Brownells. I will give it a try next week if I can and see what happens.

[lamarbrog]

I tested with 50 round of Tulammo today, and had one failure to eject. I had issues with this ammunition before, so I think it may just be loaded too light for this pistol. Those that did not malfunction seemed to eject fine.

[5pins]

Putting the gen 3 upper on the gen2 frame turned it to a brass flinging forehead, face, chest and arm hitting machine. I only shot 10 rounds and everyone, except the last one, went striate back at me. The last one went up and landed on top of the empty mag. The gen2 upper on the gen3 frame worked fine with perfect ejection just like to always has.

After putting the gen 3 back into its proper configuration I had no issues with brass hitting me with the 150 or so rounds I put through it.