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Gunsmithing Glock trigger upgrade gone wrong

danb303

Full Member
Full Member
Minuteman
Jan 26, 2009
192
0
Alabama
I had a local gun shop put a Ghost trigger upgrade in my Glock 19. I carried it for a test run today and it double fired every time except 2 of the times I fired it. I plan to take it back tomorrow. Is this common?
 
Re: Glock trigger upgrade gone wrong

If installed correctly.... that is uncommon. Was anything else done to the trigger?
 
Re: Glock trigger upgrade gone wrong

danb, what shop did you take it to? Likewise, if it is doubling it sounds like something else was done to the trigger besides just replacing the connector
 
Re: Glock trigger upgrade gone wrong

Not to come off the wrong way... but are you sure the double fire isnt a shooter error?

I ask because I have seen people use to standard triggers fire "decent" and then under a tuned trigger have control issues.
 
Re: Glock trigger upgrade gone wrong

were any of the springs changed along with the disconnector?
 
Re: Glock trigger upgrade gone wrong

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KNIGHT11B4</div><div class="ubbcode-body">Not to come off the wrong way... but are you sure the double fire isnt a shooter error?

I ask because I have seen people use to standard triggers fire "decent" and then under a tuned trigger have control issues. </div></div>

I agree with Knight. The improvement in the trigger could affect the reset and it is possible this is shooter error. This is not meant to be an insult to you but I have seen this on the range when people shoot a pistol with trigger improvements.
 
Re: Glock trigger upgrade gone wrong

I've had this problem before but just with the ghost rocket connector and it would double now and then switched to a lighting strike connector and never had any problems.this was on my production gun and have since shot thousands of rounds with no problem.
 
Re: Glock trigger upgrade gone wrong

The way a Glock trigger works, I don't see how a double fire could be possible. Granted, I'm far from an expert, but I thought one of the built in safeties would prevent it.
 
Re: Glock trigger upgrade gone wrong

It's likely a trigger press issue BUT if the shop modified the trigger bar and sear you could see issues like this.
 
Re: Glock trigger upgrade gone wrong

I don't get what's wrong with a stock Glock trigger anyway. It's not a 1911 and the trigger isn't bad AND it's consistent. Leave it alone.
 
Re: Glock trigger upgrade gone wrong

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Onemoretime</div><div class="ubbcode-body">I don't get what's wrong with a stock Glock trigger anyway. It's not a 1911 and the trigger isn't bad AND it's consistent. Leave it alone. </div></div>

That's like saying your bolt gun is fine with the 5lb factory trigger
 
Re: Glock trigger upgrade gone wrong

Don't get me wrong... I have an M&P45 that I put a trigger upgrade in but, M&P's are notoriously horrible triggers.

Every Glock I've ever owned has been consistent... that's what I love about them. They're all the same.
 
Re: Glock trigger upgrade gone wrong

I tried several methods. I tried squeezing and keeping it held in and I tried letting off. It double fired each time. It even triple fired once.
Yes, springs were changed. I don't want to mention the shop just yet. I have 2 springs in the bag.
 
Re: Glock trigger upgrade gone wrong

This isn't something that happened once. I fired 2 mags thru it and it did it every time
 
Re: Glock trigger upgrade gone wrong

get a couple other people to shoot it so you can rule out shooter error.
 
Re: Glock trigger upgrade gone wrong

Even if it is shooter error who in the hell wants a gun that they can't stop from double firing?
 
Re: Glock trigger upgrade gone wrong

Based on the OP's description, this is clearly not a shooter related issue.

I have had the same thing happen with a G19, although it was not with a Ghost connector, it was after a "$0.25" trigger job that was just using some Flitz to polish the engagement surfaces of the stock trigger bar, connector, firing pin tail, and firing pin safety. When I did a dry fire function check the pistol would consistently "fire" (firing pin released) during trigger reset. I didn't bother live firing it as I knew it was a no go. Ultimately replacing the firing pin safety (thankfully the cheapest part of the four) fixed the problem.

My situation was a bit different from yours but here are my recomendations:

1. Stick with factory Glock parts. The competition style triggers/connectors/firing pins can be tempting, but they usually result in trouble. The Glock (-) connector is a great connector, and that is all I will use or recomend. The only non-factory parts I use are a Vickers Tactical slide release lever, and 10-8 sights. Aside from those and a grip texture job everything is stock. I will do some light polishing of parts, but I always check function afterwards.

2. Do your own work on your Glocks. It is easy enough to learn, the tools are cheap, and it gets you more aquanted with the inner workings of your pistol. You will also know exactly what has been done to yout pistol. Maybe your gunsmith did some additional polishing to your trigger parts and that is what is causing your doubling issue?

For now go back to stock parts, and check your firing pin safety to see if it has been modified. Going back to stock should fix the issue for now. If you want a lighter connector, go with the Glock (-) connector.
 
Re: Glock trigger upgrade gone wrong

+1 to what elephantrider said about doing your own Glock work, super easy and cheaper than paying someone. A Ghost trigger install is as easy as removing the slide, pushing out pins, and pulling the assembly out. Your not the first on having issues with a Ghost trigger, but a lot of the time other "modifications" like polishing and such go along with it. I've had 3 Glocks with Ghost triggers and have never had issues, but I don't do any of the cheap trick trigger jobs either.

GREG
 
Re: Glock trigger upgrade gone wrong

Dan,

Where in AL are you located? I'd be happy to help if I can, I have plenty of Glock parts on hand to undo what has been done.
 
Re: Glock trigger upgrade gone wrong

Thanks. I am just north of Gadsden. I dropped it off at the shop today and should know something tomorrow. They said it was no big deal and they would make it right.
I just got my " gun room" built. When it is completely finished I plan on learning the easy stuff myself. Thanks for all the help.
 
Re: Glock trigger upgrade gone wrong

Happen to have a Glock Armorer around? He will have this nifty orange sear plate and can check trigger bar and sear engagement. That still my guess.
 
Re: Glock trigger upgrade gone wrong

The factory glock safety plunger has a crisp sharp edge that you can feel when you pull the trigger past that point or when you reset the trigger. Some aftermarket parts such as the titanium safety plungers sold by various places you'll notice have a very smooth rounded edge making the trigger hard to hold at the reset point without refiring. I'm thinking the person who did your trigger job may have over polished something. Luckily the parts are fairely cheap and easy to replace. Google glock safety plunger and look at the different images and you'll see what I'm talking about. I've experimented with lots of the aftermarket parts and while I've never had a true double fire, this seems to be similar to what I"ve experienced before as well. It's an easy fix either way, your shop should take care of you.
 
Re: Glock trigger upgrade gone wrong

The Smith wasn't in but the guy behind the counter said he probably filed too much off when he was fitting it.. Maybe I will hear something tomorrow.
 
Re: Glock trigger upgrade gone wrong

Allowing someone to file on your Glock triggers = Fail. You can do a lot with a stock trigger without a file.
 
Re: Glock trigger upgrade gone wrong

We are trying to help. I don't give a crap what my post count is. I have multiple Glock armorer certificates and have fixed a lot of issues like you described. My Fail comment is just that. Since Glocks are simple a lot of people do silly things to them that they don't really understand.
Like we posted, altering the relationship of the crucifix and sear, over polishing the firing pin safety, etc. A lot of us have seen this and more.

If you feel I was somehow attacking you, I assure you that was not the case.
 
Re: Glock trigger upgrade gone wrong

"Allowing someone to file" sounded a little bit directed at me And I had a long day. That's the reason I edited my post
Thanks for all the help. I didn't hear back from them so I plan on calling them today. If they haven't fixed it yet I will likely just have them put it back to factory. I won't trust it if they don't.
 
Re: Glock trigger upgrade gone wrong

I had a similar issue, I replaced the factory with a 3.5# Ghost connector and went an Insights pistol class. after 500-800 rounds it started to double and after that would send of strings of 3-6 rounds (my cheapo G18 lol. The instructor shot it and got the same results. I replaced the original and had no problems. I know many people who made the same switch with no issues, so maybe I just got lucky...
 
Re: Glock trigger upgrade gone wrong

Got it back today. Apparently the connector had a flaw from the factory. The short end that is bent at a 90 degree angle wasn't bent far enough. It looked like it liked about 10-15 degrees having the correct angle. He put a new one in. Then he test fired it 15 rounds and no problems.
 
Re: Glock trigger upgrade gone wrong

I still recommend you learn to work on Glocks yourself. They are an extremely simple pistol to "smith" yourself.

Installing a new connector is **literally** a 1 minute job.
 
Re: Glock trigger upgrade gone wrong

I plan on " learning" a lot now that I have my gun room built. The wife didnt think gun cleaner and oil was good on the granite and there is too much junk in my shop to try it in there. But look out now!!! Lol