Hello all.
After troubleshooting for nearly a month, I can't figure out why this pistol is failing to feed a round in the chamber properly.

I've checked all mags and can't see a difference in lips; springs and followers seem fine as well. The mags are all factory Glock mags. No round extensions on them and all have been cleaned and inspected.

The gun is flawless as far as I can tell. I broke it all down, cleaned and lubed per Glock spec.
The ammo fired thru it has been a combination of Blazer Brass, Winchester, Remington, S&B and Gold Dot.

Is there something I am missing? I don't think the 10 mags I have can be all defective. I have done no limp wristing and proper grips have been practiced.

Do any of these pictures help?
http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1310.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1311.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1319.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1320.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1321.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1322.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1324.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1325.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1326.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1327.jpg

http://i200.photobucket.com/albums/aa147/Darklighterx/10-16-08_1328.jpg

Sorry about the quality, but these were taken with a cell phone.

Sometimes the failures are after each round fired. Other times it is every other round. This is driving me nuts. Any insight is appreciated.
Thanks.

If this is happening with ten different mags and a variety of ammunition, then it has to be something wrong with the pistol itself.   I'd call Glock and see what they have to say!!   Ive never had to use it but I have heard that their customer service is great.

I was afraid of that. The gun has less than 2500 rounds down the pipe!

When diagnosing feeding problems via pictures, it's best to leave the slide in the position with the round jammed, and not lock it back with the slide stop.  As far as your problem, it sounds like this is just beginning to happen now and not for the last 2500 rounds.  First things first, detail strip the pistol and fully clean and lube it.  While you are taking the pistol apart, you may realize that you failed to reassemble the pistol correctly the last time you detail stripped it, or a broken part.  Buy a new magazine and a box of Federal American Eagle ammo.  This ammo is completely in-spec, more times than any other plinking ammo, and should rule out ammo and mags as the problem as was suggested above.  If the problem persists call Glock, and they will make it right, and will usually throw in a few extras for your trouble.

I would think that your slide lock was assembled wrong.

Quoted: I would think that your slide lock was assembled wrong.

I was thinking the same thing and make sure when shooting your off hand is not hitting the slide lock.  Make sure you are not limp wristing when firing (have someone watch you when firing).  Even when firing Glocks its important to have enough resistance for the pistol to operate under recoil.  Its also possible the recoil spring is getting weak and doesn't give the slide enough momentum to chamber every round consistently.  A friend of mine had to replace the recoil spring assembly on a Glock 23.  The model 23 was a used Police pistol and was a few years old.  For the price of the recoil spring assembly it might be worth purchasing.  Good luck on sorting this out.

Unpossible! I thought only 1911's could fail

In all seriousness though- call glock, I'm about 100% they'll make it right

height=8

Quoted: When diagnosing feeding problems via pictures, it's best to leave the slide in the position with the round jammed, and not lock it back with the slide stop.  As far as your problem, it sounds like this is just beginning to happen now and not for the last 2500 rounds.  First things first, detail strip the pistol and fully clean and lube it.  While you are taking the pistol apart, you may realize that you failed to reassemble the pistol correctly the last time you detail stripped it, or a broken part.  Buy a new magazine and a box of Federal American Eagle ammo.  This ammo is completely in-spec, more times than any other plinking ammo, and should rule out ammo and mags as the problem as was suggested above.  If the problem persists call Glock, and they will make it right, and will usually throw in a few extras for your trouble.

All the pics are exactly as the failure happens! Some lock up the slide back and I have to press down on the slide release to return the slide and feed the round.

I'm going to head off to the range today for some more troubleshooting.

Quoted: I would think that your slide lock was assembled wrong.

Slide lock spring may be broken, or a stated it may be in the wrong place.  


Remove the slide from the frame. Can you push up on the slide lock and it stay up?  If so that is your problem.  Either the spring is broken or the tail is in the wrong place.