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Glock Factory Extended Slide Stop Problem


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#1 Chuck D

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Posted 10 March 2012 - 04:29 PM

I have a 4th Gen G17 that I use for IDPA so the ability for the slide to lock back when the gun is empty is rather important.

I installed a Glock Factory extended slide stop. The slide will lock back all day long when you insert an empty magazine and rack the slide.

The 3 times I needed to perform a slide lock reload in today's match, the slide closed on an empty chamber.

The slide stop is installed correctly, that was the 1st thing I checked and I don't believe i'm coming into contact with it during the firing process.

This NEVER happened with the original slide stop.

...any suggestions as to how to fix this ?

As always...Thank You !

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#2 Skydiver

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Posted 10 March 2012 - 04:33 PM

If the original slide stop was working, why do you need the extended slide stop?

Anyway, so the slide was locked back, but as you are putting in a fresh mag the slide closes? Or is the slide closed after you fire the last shot?

Edited by Skydiver, 10 March 2012 - 04:36 PM.


#3 Chuck D

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Posted 10 March 2012 - 04:37 PM

...I can reach it w/o shifting my grip.

I'm going back to it but it's driving me bonkers as to why the factory extended release isn't working properly

fire 11 rounds. empty mag slide closes on an empty chamber.

Edited by Chuck D, 10 March 2012 - 04:38 PM.

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#4 nb forrest

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Posted 10 March 2012 - 04:41 PM

I have the same problem with extended slide locks on Glocks. The problem for me is my grip, my thumb sits on the slide lock. I put standard slide locks on all my guns and the problem is gone.
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#5 Chuck D

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Posted 10 March 2012 - 04:44 PM

..I could swear I wasn't hitting it but I must be.

Cursed with big hands...paws actually.

Thanks !

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#6 Jonathan Taliani

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Posted 10 March 2012 - 04:49 PM

Agreed. Grip is very likely the culprit if it works on an empty mag without firing. Have you tried multiple mags just to be sure it's not the spring?

#7 Chuck D

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Posted 10 March 2012 - 04:59 PM

...yes. Three mags to be exact. All are less than 3 months old too.

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#8 Skydiver

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Posted 10 March 2012 - 05:04 PM

If you reload your own ammunition, it's very easy to come up with a load that makes the IDPA power floor, but doesn't move the gun around as violently in your grip. For USPSA, it made a huge difference on my G-34 with an extended slide stop. I stopped accidentally bumping it when I found a nice soft shooting load.

#9 EkuJustice

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Posted 10 March 2012 - 05:10 PM

Check to make sure your not riding the release ie keeping it pinned down when shooting. Try this with your thumb nowhere near it to see if it still does it. If so, go back to the factory or adjust grip

#10 cnote

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Posted 10 March 2012 - 05:16 PM

Check to make sure your not riding the release ie keeping it pinned down when shooting. Try this with your thumb nowhere near it to see if it still does it. If so, go back to the factory or adjust grip

+ 1

#11 Sarge

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Posted 10 March 2012 - 05:45 PM

If you reload your own ammunition, it's very easy to come up with a load that makes the IDPA power floor, but doesn't move the gun around as violently in your grip. For USPSA, it made a huge difference on my G-34 with an extended slide stop. I stopped accidentally bumping it when I found a nice soft shooting load.

Along this same line are your loads possibly just weak enough that the slide is not cycling that last tiny bit? Try it with some factory stuff and see what happens.

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#12 Chuck D

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Posted 10 March 2012 - 05:47 PM


If you reload your own ammunition, it's very easy to come up with a load that makes the IDPA power floor, but doesn't move the gun around as violently in your grip. For USPSA, it made a huge difference on my G-34 with an extended slide stop. I stopped accidentally bumping it when I found a nice soft shooting load.

Along this same line are your loads possibly just weak enough that the slide is not cycling that last tiny bit? Try it with some factory stuff and see what happens.



I use factory Federal 147g ammo.

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#13 waktasz

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Posted 10 March 2012 - 06:47 PM

The extended release is the devil. I take a stock release and chop it in half to get it out of the way of my weak hand grip.
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#14 Chuck D

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Posted 10 March 2012 - 06:59 PM

The extended release is the devil. I take a stock release and chop it in half to get it out of the way of my weak hand grip.


Problem solved. I could have sworn I wasn't coming into contact with the slie stop but guess what...

The extended one is out, the flat one is back in. All is again well again.

Thanks everyone !

I love that analogy..."the devil."

Edited by Chuck D, 11 March 2012 - 07:41 AM.

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#15 lostinar

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Posted 13 March 2012 - 01:59 PM

I'll take that troublesome thing off your hands if you want.....
A wise old man once told me there are three types of listeners in the world:
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there are people who listen for knowledge,
and there will always be people who don't listen.

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#16 Chuck D

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Posted 13 March 2012 - 02:31 PM

I'll take that troublesome thing off your hands if you want.....



pm me your address and I'll mail it to ya. I hate to see it go to waste.

cdisalvo@rochester.rr.com

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#17 Madcap Magician

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Posted 18 March 2012 - 05:05 PM

After a few years of swearing by the extended releases, I've gone back to the originals. I didn't have any problems not locking back with a 17 or 34, but every once in a while my 19 wouldn't lock back. On a timer, it makes no difference for me on my reloads so out the extended parts went.
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#18 mizer67

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Posted 18 March 2012 - 05:18 PM

I'm left handed, and the only way I can use the slide release is if it's the extended version.

No worries about riding the release either.




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