Glock 5th Gen Double Feeding Issue.

[Gindryden]

Has anyone who is having the problem changed anything on your gun, or used the ETS C.A.M speed loader to load mags?

Here are a few things that have changed in my gun since it shot flawlessly for the first 500 or so rounds.

1. I took the gun apart to clean it (and also to install a red dot sight and mounting plate)
2. I put a red dot sight on the gun (adding extra weight to the slide)
3. I tried using the ETS C.A M speed loader which I think puts a higher degree of pressure on the feed lips of the mag when loading.
4. Not a change but using Winchester 115g ammo that seems to be quite dirty and leaves lots of black on mag follower etc.

I think i am going to take the gun down again and clean/oil it to spec. Also going to make sure that when the mags load that they contact the areas that they are suppose to contact and visa versa. Will also take a close look at the mags to see if any were slightly deformed by the ETYS speedloader or the process i used when learning to use that piece of equipment.

PS this seems like a great video of cleaning inspecting a glock. https://youtu.be/ZwkLsQWqja0

Will post back if i find anything.

 

[Jeff5316]

Has anyone who is having the problem changed anything on your gun, or used the ETS C.A.M speed loader to load mags?

Here are a few things that have changed in my gun since it shot flawlessly for the first 500 or so rounds.

1. I took the gun apart to clean it (and also to install a red dot sight and mounting plate)
2. I put a red dot sight on the gun (adding extra weight to the slide)
3. I tried using the ETS C.A M speed loader which I think puts a higher degree of pressure on the feed lips of the mag when loading.
4. Not a change but using Winchester 115g ammo that seems to be quite dirty and leaves lots of black on mag follower etc.

I think i am going to take the gun down again and clean/oil it to spec. Also going to make sure that when the mags load that they contact the areas that they are suppose to contact and visa versa. Will also take a close look at the mags to see if any were slightly deformed by the ETYS speedloader or the process i used when learning to use that piece of equipment.

PS this seems like a great video of cleaning inspecting a glock. https://youtu.be/ZwkLsQWqja0

Will post back if i find anything.

I installed a Holosun green dot sight on mine the day I bought it and I just switched the trigger to a Timney Alpha 3 lb pull competition trigger. I have also done full cleanings on the gun and oiled. The problem was there and the exact same also with the stock trigger. I’ve never used an ETS but I do use a Maglula speed loader at times when I’m not loading by hand.

 

[Ex3dy]

The copper colored stuff that Glock puts on the firearm from the factory is both a lubricant and helps to burnish the rails, you aren't supposed to clean it off.

 

[Jeff5316]

The copper colored stuff that Glock puts on the firearm from the factory is both a lubricant and helps to burnish the rails, you aren't supposed to clean it off.

I haven’t been cleaning that stuff off. I’ve been doing exactly what the manufacturer recommends. This problem has been happening basically since the second day I shot this gun and has been ever since. So it has nothing to do with the copper stuff. The bullets just keep jamming above the feed ramp.

 

[pirate604]

Are the cartridges trying to jump the chamber and end up vertical? I know you stated that it is happening with multiple mags but it could be the feed lips, if the cartridge is standing too tall it won't make it up the feed ramp. Also, the feed ramp could be out of spec or there could be a burr that is catching on the edge of the case? Is this happening with flat nose bullets and round nose bullets alike? This is a very odd malfunction to be happeining with a Glock. The only time I have ever seen this consistantly was with a KGI Glock mag, I bent the feed lips in slightly and it solve the issues. Are you using OEM mags or aftermarket?

 

[Gindryden]

So I took my gun apart and thoroughly cleaned it to spec. Checked all the magazines both Glock (5) and aftermarket (2). Everything seemed as if it were functioning as it should. Last test was to put each mag in and make sure it locked on open with an empty mag. Each mag seemed to function as it should except for 1 glock mag. Took it in and out a couple times and slide still did not lock on open. After several tries it locked finally and now seems to function fine so whatever is happening seems to be magazine related and not the gun function (at least in my case). I think the weight of the new sight and mount may contribute to the double/fail to feed problems that come up occasionally. It is not really an issue for me and not going to go fire $100s worth of ammo to try to analyze it any more than I have. I suppose I am going to keep a good eye on it and forum posts to see if anyone else is finding a solution. .

 

[Jeff5316]

Are the cartridges trying to jump the chamber and end up vertical? I know you stated that it is happening with multiple mags but it could be the feed lips, if the cartridge is standing too tall it won't make it up the feed ramp. Also, the feed ramp could be out of spec or there could be a burr that is catching on the edge of the case? Is this happening with flat nose bullets and round nose bullets alike? This is a very odd malfunction to be happeining with a Glock. The only time I have ever seen this consistantly was with a KGI Glock mag, I bent the feed lips in slightly and it solve the issues. Are you using OEM mags or aftermarket?

They are the flat nose 40 S&W bullets. I’m pretty sure thats all you can get in that calibre. When this happens the head of the bullet partially enters the chamber but the rest jams on top of the feed ramp every time. They’ve never tried to go vertical. That’s why I believe for mine anyway the problem is feed ramp related which I why I was going to try and polish the feed ramp next.

 

[enefgee]

Take the mags apart and check for burrs in the front area of the mag, where the projectile rides. I've seen polymer mags with a slight burr in that area cause the round to be held up - when the round above it feeds, it starts the feed cycle a bit low and when the round above is fired it's pushed with more force than required and goes in nose up and high. Either way, it won't hurt to smooth the lips as well.

 

[NovaSpeed]

I get them with lighter ammo, 115-124. I never get jams with 147… ‘-O-‘

 

[Ex3dy]

Is everybody having this problem with M.O.S. guns? Check your extractor spring assembly because one of the optic mounting screws might have shed some gunk into the extractor spring channel. You probably have to remove one (right) optic screw to get it out.

 

[Jeff5316]

Just to give an update on my Glock 22 Gen 5 Mos. After lots of failure to feeds since brand new. I decided to polish the feed ramp because I’ve believed for awhile now that’s what was causing my issue. Since I’ve polished the feed ramp my gun hasn’t had a single failure to feed since. It’s been running exactly how it should be and it’s the first time I have been happy with the gun since I got it in august.

 

[pirate604]

Glad to hear you were able to resolve the issue.

 

[Gindryden]

Just to give an update on my Glock 22 Gen 5 Mos. After lots of failure to feeds since brand new. I decided to polish the feed ramp because I’ve believed for awhile now that’s what was causing my issue. Since I’ve polished the feed ramp my gun hasn’t had a single failure to feed since. It’s been running exactly how it should be and it’s the first time I have been happy with the gun since I got it in august.

Good to hear, wonder if it was just a batch of mags with very slight burrs or something on feed ramps. I took all of my mags apart and give them all a wipe before the last time I went out and never had a problem.

 

[Eduardo]

For ammo I'm using my reloads, 124 gr FMJ with 3.9 gr of Tight group and Winchester primers. I'm going to get a box of factory ammo to test out. It’s just odd because I have shot my reload using this recipe in several Glocks before with no issue.

Try factory ammo and a hotter reload, 3.9 of titegroup might not be enough to proper function your Glock with factory parts. I do use 4.3 of titegroup on my Glock.

 

[B]

I ran a box of Blazer Brass and some handloads through my New G5 model 17MOS. No issues but it was barely 100 rounds. Too much stuff on the go to give it much attention.

 

[rajczak_kashka]

Aluminum cases equals issues

 

[Jeff5316]

Good to hear, wonder if it was just a batch of mags with very slight burrs or something on feed ramps. I took all of my mags apart and give them all a wipe before the last time I went out and never had a problem.

I honestly believe there must have been an imperfection in the finish on my barrel feed ramp. I haven’t touched any of the mags. Just polished the feed ramp on the barrel. Seems to have solved my problem so far. Hopefully it will stay that way.

 

[NovaSpeed]

Is everybody having this problem with M.O.S. guns? Check your extractor spring assembly because one of the optic mounting screws might have shed some gunk into the extractor spring channel. You probably have to remove one (right) optic screw to get it out.

Thanks I’ll check this out.

 

[Big JD-From the hills]

If the striker is hung up in any way your glock gen 5 will not feed in this exact manner. The feed ramp would have to look like a file for that to cause problems. The gen 5 slides, especially the g22 are allot heavier... if someone says they aren't limp wristing.... they might just have twiggy arms.

 

[Jeff5316]

If the striker is hung up in any way your glock gen 5 will not feed in this exact manner. The feed ramp would have to look like a file for that to cause problems. The gen 5 slides, especially the g22 are allot heavier... if someone says they aren't limp wristing.... they might just have twiggy arms.

The striker wasn’t held up and the problem was my feed ramp. It’s worked perfect since I polished it. I couldn’t get through a mag previously without it jamming. I’m aware of the 22 Gen 5 slides being a lot heavier. Everyone automatically just assumed I was limp wristing until they actually witnessed me shoot it. They quickly realized I wasn’t. It’s not my first time using a handgun either. I’ve fired over 6000 rounds in the last two months alone from a variety of handguns including other Glocks. I’ve also taken a few courses with professional handgun shooters as well to help me brush up on some skills for competing. People just don’t seem to want to admit that although Glocks are great guns and I love them. They can have flaws also like any other manufacturer and this proved exactly that.