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Breaking in a glock???

8718 Views 15 Replies 11 Participants Last post by  tcecil88
About to get a new gen 4 23. I have heard from a couple different period that the gen 4's need a "break in" period due to the stiffer new dual recoil springs. I always took em outta the box lubed em up and shot my trusty old Winchester White Box. I guess now they need a break in period??? am I hearing BS or is this true?
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some folks were locking back the slide on their gen4 9mm's in order to loosen up the strong recoil spring, but that was before glock came out with the weaker springs for the 9mm's. i haven't heard any issues with the gen4 g23, shoot away :)
Breakin period? When did the Glock become a 1911? (I've seen a bunch of those reports. No Gen4 for me).

Give it 200 rounds on your first outing. If it works great for those, then it will be fine. Take some of your carry ammunition. Shoot a magazine or two to verify it works. Clean and carry!

And, yes, I have seen Glocks with problems out of the box. A friend had a G19 that couldn't get through a magazine without jamming. It turns out there were a few burrs around the chamber and one inside I discovered when I inspected the brass. It went away after a 150 or so shots. We just kept shooting it until the crud wore away.
My Gen 4's shoot great. I haven't done any kind of break in with them. I keep hearing the same old argument from people about the G4s. I am really wondering how much of it is just repeated from what someone else said. Then repeated again, and again, and you get the idea. Did some people have problems with the yes. But I can say I have four G4s and have had no issues of any kind except for some really weak reloads in a G17. Inserted the 02 spring problem went away.

My point is if problems with them were that prevalent one would think I would have had some sort of problem with at least one of mine by now. Plus the stories all sound the same. Smell the same too IMO
I keep hearing the same old argument from people about the G4s. I am really wondering how much of it is just repeated from what someone else said. Then repeated again, and again, and you get the idea.
Friend of mine had a 17G4 that had some trouble for awhile. It worked itself out.

I prefer to just stick with Gen3 until the Gen4's are thoroughly debugged. I'll give it a year and get a Glock 21.
My Gen 4's shoot great. I haven't done any kind of break in with them.
Good for you. I am not so fortunate. On my 34 G4 I had to manually assist each of the first 10 rounds to feed. Took it back to the store. They fiddled with it a bit and suggested I mark my magazines to see if all 3, or just one magazine was refusing to feed.
Not wishing to shoot myself, I purchased 5 dummy rounds and racked them through by hand several times. On all three magazines, the last (5th or 10th) round would not feed, either with the dummy rounds, or by shooting actual 9 mm rounds. I sprayed little WD40 into the open gun with a empty mag in position, and wiped off the excess.
I noticed that the rim of the last case catches on the magazine carrier a little when I try to push it out of the magazine. The cartridges before the last one slide smoothly across the one below them. So now I have taken a fine jewelers file and rounded the rear of the edge of the follower a bit, where it was hanging. And gave it another shot of WD40. I will be able to get to the range in 3 days and try it out. (I only filed on one magazine, as a test)
I can't be the only person in the world to experience consistent failure to feed on the 34 G4???
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I think there "may" be some truth to the RSA. I shot my gen 4 26 out of the box and on the first mag had one stove pipe. That was about 1,500 rounds ago, so hey, who cares. Doesn't prove anything but then again, locking the slide back awhile or racking it repeatedly isn't going to hurt anything either. Being a car guy, yes, an "unexercised" spring is going to be a bit more still initially.
Did y'all see this a 4+yr old thread?



230, I've not heard of that problem with a magazine before, especially 3. If there's any residue left from the WD-40 you'll want to clean it out. Mags should be run dry to keep powder from having a place to stick.

If you think the mag springs are too stiff, I use a flat carpenter's pencil (fits in the mag opening well) to work the springs if they need it.



If the problem is isnt resolved, call Glock. Their customer service is excellent.
Did y'all see this a 4+yr old thread?

230, I've not heard of that problem with a magazine before, especially 3. If there's any residue left from the WD-40 you'll want to clean it out. Mags should be run dry to keep powder from having a place to stick.

If you think the mag springs are too stiff, I use a flat carpenter's pencil (fits in the mag opening well) to work the springs if they need it.

If the problem is isnt resolved, call Glock. Their customer service is excellent.
My how time flies ... Gen4 been around for almost 5 years. Another way to break any of those guns in would be to send them to Eastern Iowa with pre-paid return shipping and insurance. Include a prepaid voucher for 1000 rounds of the same caliber. Give me a couple of weeks and I'll take care of that problem for you. AT NO CHARGE!!!
Two weeks? I'll do it in two days!
Buckskin and MtStream ... that is a seriously generous offer. Who knew guys like you even existed these days?
Two weeks? I'll do it in two days!
Ah ... and I bet you guzzle your wine, too. You have to savor the moment ... fire each round and enjoy the smell of the gun powder, the loud bang, the bright flash.

Grasshopper ... you have much to learn. There is noooooooooooo hurry. Enjoyyyyyyyyyyyyyy ...
Buckskin and MtStream ... that is a seriously generous offer. Who knew guys like you even existed these days?
Hey ... it's a burden. Goodness shall follow me all the way to the gun range. Uh, words to that affect. :D
My G19 & G26 never had any glitches After the first three hundred rounds shot they both became my main EDC (G19 gen4 95% of the time, G26 gen3 3% my Ruger SR40c that was my only firearm for two years became carry # 3 only coming out at night when wife and i would go out. The only Glock that ever gave me issues was my G42 and that was in the ammo I was using. I am still undecided over the G42. I really really like carrying the G19 & G26. My wife isn't that crazy over it either liking the G26 out of all Glocks, but she claims she'd rather carry a revolver, because of arthritis.
When the Gen-4 Glocks first came out, they had some issues with the RSA and the extractors. The RSA was supposedly corrected with a newer RSA and some machining to the slide and the extractor was re-designed.

I have a Gen-4 17 that I had FTF and FTE issues with. I contacted Glock and the first thing they asked was what kind of ammo was I using. I told them I was using Winchester WWB. Their reply was that the ammo was too weak cause the springs were designed to use with NATO spec ammo which was hotter.

I changed the RSA and all my problems went away.
My Gen 3 G17 ejects back into my face as well, what RSA did you go with?
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