Glock 18C slide gets stuck

tunabreath · January 7th, 2007, 19:46

I have absolutely no idea what could be causing this. Occasionally, when firing in long-ish full auto bursts, the slide will get stuck back. It's not due to the slide catch, and usually only occurs if I started with a freshly gassed long mag (which has been allowed to warm up). It feels like there's just a lot of friction between the slide and the frame when it happens, and removing the magazine has no effect. Gently forcing the slide back forwards seems to correct the problem entirely until the next occurrence.

I can't think of anything that would do this. Is it a lube problem? That would coincide with the rough friction feeling, but I've lubed it pretty recently...

Edit:
Ok, it only seems to happen with one of my mags. The friction point seems to be between the back of the outer barrel and the top of the slide, behind the opening for the compensator. I think that something with this mag causes the recoil rod or outer barrel to be jarred out of place when fired on full auto, then returned to the correct position when I force it back into battery. I still have no idea how to prevent it though.
I've been using propane.

vatek · January 8th, 2007, 11:50

Have you lubed the rails where the slide travels on the frame?

Also, check the pin that holds the feed ramp on the magazine, it may be loose.

tunabreath · January 8th, 2007, 14:57

Rails are definitely well lubed.

I checked both of my long mags and sure enough, one of them had the pin sticking out about 2mm from one side... I pushed it back in but haven't had a chance to test it (it would take a while to test; the problem occurs fairly randomly).
I also noticed that the pins on the long mags are a LOT looser than the ones on the standard mags. Is there any way to remedy this to prevent them from sliding themselves out again? Maybe a little electrical tape under the top mag seal where gas vents out?

vatek · January 9th, 2007, 11:38

Mine do the same, I'm still looking for a way to secure them without causing problems.

medhatboy · January 9th, 2007, 18:35

I only had this problem with my glock 34, ended up having to sand a few spots where the slide and the frame were rubbing, after that no problems at all, except that I don't use it, since I got my glock 18c.

hattrick · January 9th, 2007, 20:05

you def just need to sand the outer barrel down abit.

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January 7th, 2007, 19:46	#1
tunabreath Trader rating Join Date: Dec 2005 Location: Edmonton, AB	Glock 18C slide gets stuck I have absolutely no idea what could be causing this. Occasionally, when firing in long-ish full auto bursts, the slide will get stuck back. It's not due to the slide catch, and usually only occurs if I started with a freshly gassed long mag (which has been allowed to warm up). It feels like there's just a lot of friction between the slide and the frame when it happens, and removing the magazine has no effect. Gently forcing the slide back forwards seems to correct the problem entirely until the next occurrence. I can't think of anything that would do this. Is it a lube problem? That would coincide with the rough friction feeling, but I've lubed it pretty recently... Edit: Ok, it only seems to happen with one of my mags. The friction point seems to be between the back of the outer barrel and the top of the slide, behind the opening for the compensator. I think that something with this mag causes the recoil rod or outer barrel to be jarred out of place when fired on full auto, then returned to the correct position when I force it back into battery. I still have no idea how to prevent it though. I've been using propane. __________________ Vita, Passione e Pistole Last edited by tunabreath; January 7th, 2007 at 20:26..

January 8th, 2007, 14:57	#3
tunabreath Trader rating Join Date: Dec 2005 Location: Edmonton, AB	Rails are definitely well lubed. I checked both of my long mags and sure enough, one of them had the pin sticking out about 2mm from one side... I pushed it back in but haven't had a chance to test it (it would take a while to test; the problem occurs fairly randomly). I also noticed that the pins on the long mags are a LOT looser than the ones on the standard mags. Is there any way to remedy this to prevent them from sliding themselves out again? Maybe a little electrical tape under the top mag seal where gas vents out? __________________ Vita, Passione e Pistole

January 9th, 2007, 18:35	#5
medhatboy formerly Swatt Five-Six Trader rating Join Date: Dec 2001 Location: Medicine Hat, Alberta	I only had this problem with my glock 34, ended up having to sand a few spots where the slide and the frame were rubbing, after that no problems at all, except that I don't use it, since I got my glock 18c. __________________ Medicine Hat Airsoft - Home of the Cypress County Tactical Airsoft Team

January 8th, 2007, 11:50	#2
vatek Trader rating Join Date: Feb 2006 Location: Calgary	Have you lubed the rails where the slide travels on the frame? Also, check the pin that holds the feed ramp on the magazine, it may be loose.

January 9th, 2007, 11:38	#4
vatek Trader rating Join Date: Feb 2006 Location: Calgary	Mine do the same, I'm still looking for a way to secure them without causing problems.

Glock 18C slide gets stuck

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