g37 problem

[iceman06]

Today I was out sighting in my new mx6 laser/light and my new gun was giving me problems.

1. about 8 out of 10 times once the last round was fired the slide would not lock back. A few times I thought that my ammo was bad until I pulled the slide back to see that there was no ammo.


2. every once ina while when it would lock back after the last round was fired, it wasn't "locked" back, more like it was jammed back. I could press the slide release, which you may not be able to do on an empty mag. And also I couldn't press the mag release.


This is a brand new gun why is it giving me problems? I am thinking about going back to a sig ;a

[iceman06]

I completely stripped it down to just the poly frame. I spoke with a gunsmith and he said that if it did't do that with both mags then its prolly a bad slide release, but it is done it with only one then it is a follower. Well it did with both so I took the spring/wire on the slide release and bent it outward a bit, which doesn't make sense becasue that would just cause the release button to stay down in the releasED position. I went out and fired and the slide locked back but that could have been just one of those 2 out of 10 times. I am running out of ammo and I want to keep 20 rnds around to keep in each mag to help losen the springs so I need to go buy more before I go back out and shoot again. I know that the reason the slide would "jam" back is becase the springs in the mag are to stiff. I don't want to explain all of that but that is the reason why it jams back sometimes. I am still stumped on the first part.


The slide release itself looked fine, of course I wouldn't know what a "good vs bad" one looks like anyway.

[gary newport]

Did this happen ONLY when the light/laser was mounted on the pistol?

[iceman06]

Well, before I had the light I only shot the pistol a few times. And i don't remember anything like this happening or else I would have been worried abotu it. But why would that matter? It slides on the slide upfront. You guys know I don't. I just know how to disasemble it. LOL

[GlocksterJeff]

I also suspect that the light is your problem. The Glock frame is plastic and flexable. Also, the extra weight of the light up front may be changing the way the pistol recoils. Are you using an aftermarket recoil spring or rod? In the long run, the problem may go away once your new pistol has broken-in a bit. My advice though is to take off the light in the daytime and see if the problem goes away.

[iceman06]

hmm well I guess it could be. I'd hate to take it off, that darn thing cost alomst what the gun cost LOL. As far as a spring, its all stock. the whole gun is stock.

[wizzi01]

Could be the bad followers in your mags. Some of the 37s were shipped with followers that had play. Take your unloaded mags and wiggle the followers left to right I bet that there is like an 1/8 of play or more. If that is the case call glock and tell them you need the new followers.

[unclebob]

Were are your thumbs in relationship to the slide release when you shoot the gun? You could be holding the release down with your thumbs.

[iceman06]

well I don't think its my thumb, believe it or not that was the 2nd or 3rd thing I thought I might be doing. As far as the followers go, do you mean take the mag apart or just leave it unloaded and wiggle the plate (I guess thats what its called) left and right. I did it like the later and it moved but isn't that just normal. I mean, its sitting ontop of a spring thats going to have some play in it, not a steel rod. But I havebn't tried with the mag taken apart, maybe thats what you mean.

[Glock-N-Fun]

When you get the mags apart check for plastic burrs from manufacturing near the top/feed lips of the mag,the follower/s may be getting hung up on plastic burrs.Also,shoot it without the laser light as others have suggested.
As a side note Laser Max units which is in a guide rod have given glock pistols unreliable functioning from recoil springs supplied with the unit being to heavy and binding.

[wizzi01]

Originally posted by iceman06
well I don't think its my thumb, believe it or not that was the 2nd or 3rd thing I thought I might be doing. As far as the followers go, do you mean take the mag apart or just leave it unloaded and wiggle the plate (I guess thats what its called) left and right. I did it like the later and it moved but isn't that just normal. I mean, its sitting ontop of a spring thats going to have some play in it, not a steel rod. But I havebn't tried with the mag taken apart, maybe thats what you mean.


You try it when the mags are fully assembled.Ijust looked at my mags and the new followers have zero play in them. Call Glock they will get you straight.

[sniper1moore]

Yep it's the mags my 37 did the same thing.Call Glock and explain to them what is happening and they will get you fixed up.Ken

[Rusty Phillips]

I too had the same problems that you are describing

Originally posted by unclebob
Were are your thumbs in relationship to the slide release when you shoot the gun? You could be holding the release down with your thumbs.

+1

As I see it the problem is the extended slide release lever - prior to my 37 I had never fired stout loads thru a extended slide release equipped glock before (I have the extended release levers on my 26 and 34, but no 9mm load I have ever fired could really be called stout),

the best I can determine, I was hitting the slide release lever with my thumb during recoil and keeping it from riding up and catching the slide when the follower pushes it up.

I only saw this with the (heavier) factory loads I shot, not my poofer 45 gap reloads that barely cycle the slide

wanna test to see if this is going on?

testfire the gun lefthanded so you have no opposing digits anywhere close to the offending lever.... what I would do is load one in the chamber, then swap to an empty mag and fire the round in the chamber(to maximize the # of slidelocks you get to see for the least $$$)..... repeat this as often as you need to left handed and right handed to see if it is your thumb getting in the way or not

I betcha 500 rounds of once fired 45 gap brass that you are getting a thumb on that lever and don't even know it!

Fix?

BE CAREFUL ABOUT THUMB PLACEMENT,

if that isnt enough you might also consider swapping the extended lever to a standard release lever (and then using the slingshot method to release slide)

if you need a standard release lever I can mail you one - email your address to me at RustyRP@aol.com and I'll throw one in the mail to you tomorrow.

Part 2

ok - so the slide release is being held down by the thumb and doesnt pop up to catch the slide? but your slide was held back?? and you couldnt eject the mag??

simply put the rear edge of the follower is holding open the slide.
so how does the mag hold the slide open?

well, the G37 has some helacious mag springs in it - my followers could hold open the slide when they were new and I also couldnt get 10 in to save my life. with time and the springs taking a set, I can load ten in and now they wont hold open the slide anymore....

load up all your mags with 10 rounds and leave em sitting in the closet for a month or so!

I hope you dont get too down about your early experiences with the 37.... it really is a *****cat!