Glock 34 Troubleshooting

[Caseless]

My factory stock Glock 34 Gen 3 has this occasional failure to eject issue at the most inopportune time. e.g. on the MGM Ironman zipline. (Not my run, just an FYI)

http://www.youtube.com/results?search_query=mgm+ironman+zipline&oq=MGM+Ironman&gs_l=youtube.3.3.35i39j0l3.7457.9125.0.12576.11.11.0.0.0.0.207.1396.3j7j1.11.0...0.0...1ac.1.11.youtube.GJMZzHe4dno

Failure rate is random but persistent. Once every 500 rounds during the MGM match, three times at a 200 rounds pistol match. Ammo factor has been eliminated. Using the same lot ammo in two other G17s never caused any issue.
Since I don't have a large supply of 9mm ammo to troubleshoot this part by part, I plan to replace all suspect parts at once.
Aside from the extractor. What else plays a role in extraction? Ejector? Recoil spring? Use some gen 4 parts?

[Hans Gruber]

Replace your extractor. I had the exact same problem with my G34 last year that culminated in a less than stellar result at USPSA Production Nationals. I replaced mine with a friends but that one had the same issue. Replacing it with a brand new one fixed it 100%.

Do a test, take an empty 9mm case and snap it under the extractor at the breech face. If it doesn't sit solidly flush with the breech face, if it rocks back and forth like it's unlevel, that's your problem.

Good luck.

[DFence]

I wouldn't say ammo has been completely eliminated. Just because the ammo works fine in 2 other guns, doesn't mean the G34 is going to like it. But you are probably safe to say that the ammo is ok.

I would change out the extractor first since its cheap and easy to do.

If you contact Glock, they will find a armorer thats close to you to do the warranty work or send you the part. I have them in stock if you are close to the OC area.

[tacticalcity]

Well if you're shooting at that level of competition I can't break out the old "blame the shooter" answer. LOL.

Usually when hear stuff like this it is something the shooter is doing wrong. They are usually new and lack a solid foundation of shooting fundamentals. Clearly not the case here.

So I agree, probably an extractor issue.

If you get the extractor replaced and it continues then that particular gun just doesn't like that particular ammo. Happens all the time. I've seen it before. One gun will eat up something just fine, the exact same model gun has nothing but trouble with it. It happens. Few people run their guns as hard and as often as you do nor do they have so many similar guns so they never really make the connection.

[Caseless]

Thanks guys. I'll replace extractor only for now.

[tonyxcom]

Are you allowed to use an aftermarket one, like the Apex?

[Losd619]

Well if you're shooting at that level of competition I can't break out the old "blame the shooter" answer. LOL.

Usually when hear stuff like this it is something the shooter is doing wrong. They are usually new and lack a solid foundation of shooting fundamentals. Clearly not the case here.

So I agree, probably an extractor issue.

If you get the extractor replaced and it continues then that particular gun just doesn't like that particular ammo. Happens all the time. I've seen it before. One gun will eat up something just fine, the exact same model gun has nothing but trouble with it. It happens. Few people run their guns as hard and as often as you do nor do they have so many similar guns so they never really make the connection.

How would an inexperienced shooter effect extraction problems?

[tonyxcom]

Limp wrist.

[Caseless]

Are you allowed to use an aftermarket one, like the Apex?

Yes, Trooper division at Ironman is an 'unlimited' Open division.