Glock 20 Problems

[enidpd804]

I went to the range with my favorite defensive handgun today.  I've had three failures to go into battery out of the estimated 700 rounds I've put through it before.  Today, I had several every single magazine.  Unfortunately, I only brought one mag and it was new.  I was also firing some really old Federal that I'd never fired before.  It all looked to be in good shape.  With the previous stoppages, I wonder if I have a bad recoil spring.  I marked the magazine and I'll try another one when time permits. 

Kinda of a crappy range day with the Nugent ammo disappointment.  I guess I'll be talking to Glock tomorrow. 

[EdMc]

I'd try another mag first.......Shot some older Federal stuff not long ago with no problems.

[The_Shadow]

When you check it out again be mindful of not limp wristing it...the lesser impulse ammo may have you loosening you grip up.
Check your cleaning and lubing of the gun as well to see it things improve.

[enidpd804]

Today, I tried another new magazine and an older well-tested magazine with the same ammo.  No problems in 75 rounds.  I was able to induce two limp wrist malfunctions with the weakest one hand hold I could muster, but I really had to try. 

I can't see anything visibly wrong with the problem mag.  It has a #2 follower just like the rest of them.  It's probably not worth calling Glock over.  I'll just dump it and order a few more through Botach.  This is why I always test my carry mags with my carry ammo.  Murphy's everywhere. 

[DocGlock]

You should have also re-tested the "bad" mag.  It could have just been you having a bad day on your problem session?

[enidpd804]

I shoot twice a month at work, including today.  I've never experience limp wrist malfunctions.  It doesn't seem possible that I would start and stop creating a problem so suddenly 17 years into my career plus several years of shooting before that.  It's definitely worth the experiment, though.  Any excuse to shoot, right?    

Do people really have that much trouble with limp wristing?  I don't know if I've ever seen a stoppage that wasn't mechanical out of a service grade pistol.  Like I stated above, I had to really try to induce two of them out of a full magazine. 

[4949shooter]

I fired hundreds of full power rounds through my G20 SF one handed both strong and weak without an issue. It's more likely the bad mag. I called Glock a while back regarding a weak RSA. They sent me a new one free of charge. It might not be a bad idea to call Glock after all. They might send you a new mag (or two).

[REDLINE]

I fired hundreds of full power rounds through my G20 SF one handed both strong and weak without an issue.

Me too.

[enidpd804]

I got the new factory recoil spring assembly in today.  The guide rod is visibly longer. It measures 3.364" compared to 3.355".   The spring feels more robust.  I'll try to get to the range in the next few days. 

[4949shooter]

Looking forward to a range report!

[enidpd804]

I brought two new untested mags and the suspect mag with some American Eagle to the range.  The suspect mag had two malfunctions in the first five rounds-which is what it did every time I used it.  The other two were flawless for several magazines.   I ALMOST packed up feeling good about things.  New recoil spring and a bad mag, right?  I brought a box of Corbon and my last box of Nuge ammo with me.  I decided to burn them, too, for good measure.  Both gave me stoppages in the first five rounds.  The nose was either jammed upwards or to the left into the chamber.  I've put more than a few boxes of CB 150's through this pistol before with no drama.  Another interesting thing:  Since, I started having trouble with it, I've noticed two things.  Upon disassembly, the recoil spring/guide rod is always loose and there's always white/silver shavings around it. 

Anyway, I'm all troubleshooted out.  I'm going to break down and call Glock this week. 

[The_Shadow]

Do you see any place where the recoil spring/rod is wearing rubbing in the area of the white/silver metal shavings.

Is it possible the recoil rod is binding up not allowing the slide full travel to the rear?   You may not be getting full travel to pick up the next round at the correct angle to enter the chamber correctly...

Good luck sorting it out!

[enidpd804]

Do you see any place where the recoil spring/rod is wearing rubbing in the area of the white/silver metal shavings.

Is it possible the recoil rod is binding up not allowing the slide full travel to the rear?   You may not be getting full travel to pick up the next round at the correct angle to enter the chamber correctly...

Good luck sorting it out!

Not really.   I've been trying to figure out if the white/silver shavings were an indicator.  I forgot to mention it to Glock when I called them today.  I also noticed that everytime I disassemble the pistol, the guide rod is loose.  The thing is: this is a brand new guide rod and spring.   

[enidpd804]

Glock said to remove the rail mounted light.  I told him I'd been using it for years and had even shot Corbon with it on before.  I know that Glock 40's have had sporadic problems with lights before (Indiana SP and Topeka PD) but I didn't know that the G20 had been infected.  Glock guy said that higher impulse ammo and/or a slightly out of spec mag plus a light can cause problems.  He offered to sell me some higher power mag springs.     He said to try it again before sending it in.  So, I did today.

I loaded 10 rounds of practice stuff first and then five CB's on top, then topped off the mag with CB.  Since all of the stoppages occurred in the first five rounds, I repeated this several times.  What do you know? No drama.  I did the same thing three times with Underwood.  Again, no drama.  I then shot a full mag of Corbon (getting $$$ at this point).  So, I guess my gun's not broke. 

I did notice one strange thing.  When I took the gun home the other day after having trouble, the mags would not readily drop free.  I really had to depress the mag release all the way with any mag I put in it.  Today, I noticed the mags were dropping free.  I even mumbled to myself, "well, it'll probably work right now." 

[REDLINE]

When you tried it again, was the light still mounted to the rail?