Glock 34 mag problems

[ballz71]

I recently bought a used glock 34 that had some modification done to it. warren tactical sights, under cut trigger guard , flatten front strap and stipple job,  Along with some trigger work. Im having some issues with the mags falling free when the slide is lock back after firing the last shot. I have tried both holding the gun vertically and releasing the mag and also doing it canted as if i was going to do a normal reload. In ether instant the mag does not fall free. i have taken the side off that gun and inserted an empty mag it will fall free most of the time but not all of it. i have removed the mag release and smoothed it down a little because there was a burr on it. This did not help the issue. i can not see anything that is rubbing. Any on ran into this?

[TNWNGR]

The first thing I'd try is a replacment mag release and spring....

[ballz71]

had a spare release setting around i replaced it still happened. wouldn't the spring only effect it during engagement not disengagement? 

[Sidecarist]

If the spring is a bit long it may prevent the release from disengaging fully as the spring becomes coil bound.

You may be able to use something to mark he mags then insert/remove them several times to see where they are dragging. I've used machinists layout blue for this in the past. It sticks fairly well but can be removed with regular cleaning solvent.

[TNWNGR]

had a spare release setting around i replaced it still happened. wouldn't the spring only effect it during engagement not disengagement? 

 

The plastic mag release is a chronic problem in the Glock pistols and frequently the simplest and best feasible solution is simply replacing it. Should the problem not be mechanical then you need to think about readjusting your hand grip while shooting as this is another rather common problem, especially so with extended mag releases.

[ballz71]

The plastic mag release is a chronic problem in the Glock pistols and frequently the simplest and best feasible solution is simply replacing it. Should the problem not be mechanical then you need to think about readjusting your hand grip while shooting as this is another rather common problem, especially so with extended mag releases.

That is what i was thinking and i can get the mag to jam by squeezing the grip and trying to release at the same time. i can also hold the gun with my other hand softly and depress the mag release and mag will still not fall out while the slide is locked back. Is there any recommended brand of mag release or mag release spring that i should look for?

[TNWNGR]

http://www.rockyourglock.com/parts/MagRelease.htm

 

​ I prefer the OEM mag release others seem to like the Vickers Tactical but lots of folks want to sell you what they make...

[pops572]

Depending on how much modification/stippling was done, the magwell may be deformed. It wouldnt take much grinding, melting of polymer to bend it slightly out of spec or to weaken the polymer to the point that the pressure from your grip in conjunction with trying to release the mag causes it to hang. My suggestion is to strip the mag release completely out, take the top end off, and try inserting mags and see if the hang up when let go, if there is nothing holding them they should fall out as soon as you move your hand, however if there is any lag time, then the magwell is out of spec.

[ballz71]

Depending on how much modification/stippling was done, the magwell may be deformed. It wouldnt take much grinding, melting of polymer to bend it slightly out of spec or to weaken the polymer to the point that the pressure from your grip in conjunction with trying to release the mag causes it to hang. My suggestion is to strip the mag release completely out, take the top end off, and try inserting mags and see if the hang up when let go, if there is nothing holding them they should fall out as soon as you move your hand, however if there is any lag time, then the magwell is out of spec.

i did this with the mag release out and top off mags fell out freely.

[pops572]

Ok, next step, is it doing it with all mags or only certain mag/s. Are the mags what came with the gun or have you tried others? They could be possibly some that are near the larger end of the size spectrum, and are hanging up.

[ballz71]

Ok i got messing with it i got 6 mags one fall free all the time 2 catch some time and 2 i have to pull out so idk. let says they did overheat the frame while stippling it. is there anyway to correct this maybe one of them little plugs that goes in the back strap or something?

[pops572]

Im not sure that a plug would help, unless the backstrap portion was out of spec, which unless they did a grip reduction shouldn't be. You van buy a new frame for $100 thru Glock. You could take the tightest fitting mags and use some fine sandpaper and sand them down until they fall free. Or if you are feeling really adventureous, you can use one of the tight fitting mags and a heat gun to soften the magwell and expand it til the mags are loose, note this would be my absolute last resort, and would probably just live with tight mags before I did this. If I had the extra $100 I would most likely jist get a new frame, if that isnt an option next would be sanding mags or living with it.

[ballz71]

I got looking at the mags and found this the two that are tight have small circles on three left hand side of the mag and the one that drop free is on the right I wonder what the difference is I can't see anything else that is different

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[pops572]

What gen are the mags? What gen is the gun? I think those circles are just molding marks

[hipower]

Watching this a hopefully learning something from it. As I've never had a problem with any of my Glocks or the Clock factory magazines; I am interested in the outcome of his problems and what needs to be done to resolve them.

 

I mean absolutely no disrespect to the OP, ballz71, or the guys who do some of the more extensive mods to Glocks or any other gun.

 

But I do not buy anything that has been modified beyond factory work. With my skill levels, or lack of them, it's just better for me.

 

It lays open a mess of problems that might or might not ever crop up, be them legal if in a shoot, or warranty issues. Perhaps I'm being overly paranoid, but that's just me.

[TNWNGR]

Ok i got messing with it i got 6 mags one fall free all the time 2 catch some time and 2 i have to pull out so idk. let says they did overheat the frame while stippling it. is there anyway to correct this maybe one of them little plugs that goes in the back strap or something?

 

Glock mags will wear over time with enough use and in turn fall more readily from the mag well. Some may feed perfectly well but wobble about enough to be troublesome. So rotation and or replacement does become necessary periodically. As to how you square off a polymer Glock frame that's no longer factory spec. Heat and a properly sized mag well insert. You also might have to have some fill in work done with Accra Glass. If you're carts handy you can probably do it yourself. If your not you'll need to weight out other options. I'm hoping a new mag release, spring and perhaps a couple of new OEM mags will solve your problems.

[ballz71]

Well I Measured the thickness of the mag from front to back found the two that are giving me problem are thicker by about 5 thousands. I'm going to sand them down gently and see if this resolves the issue.

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[ballz71]

These are Gen 4 mags and Gen 4 gun

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[ballz71]

Watching this a hopefully learning something from it. As I've never had a problem with any of my Glocks or the Clock factory magazines; I am interested in the outcome of his problems and what needs to be done to resolve them.

I mean absolutely no disrespect to the OP, ballz71, or the guys who do some of the more extensive mods to Glocks or any other gun.

But I do not buy anything that has been modified beyond factory work. With my skill levels, or lack of them, it's just better for me.

It lays open a mess of problems that might or might not ever crop up, be them legal if in a shoot, or warranty issues. Perhaps I'm being overly paranoid, but that's just me.

Understand completely I was with you before I seen this one. It already had everything done that I was going to do and also looks like it has been professionally done.

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[ballz71]

Well i took some 180 grit sandpaper placed it on a flat sanding block sanded the front of the mag. While micing it you want to try to get it down to 1.300 in. after you get it close them mag will start coming out freely. i believe the condition was cause by the stippling, because i could squeeze and lock the mag up before. This has resolved the issue for now. also pay attention to the part above the mag catch. because on one of my mags it was at about 1.312. Which was the thickest part out of both mags. 

Edited February 16, 2016 by ballz71