Gen 3 Glock 36 issues

[44fred]

Took my better half to the range early Friday morning to try out her new 9mm Shield...she likes it.
I brought my G36 for some practice along with my Smith PC1911 commander.
I ran a few mags through the 1911 w/o any hiccups, as usual.
I forgot the extra magazines for the 36 so just used the one. I had more issues with the slide locking back than not. Since I only had the one mag I couldn't compare.
I'm no expert so what say you Glock gurus? I'm thinking either mag or ammo issue (WWB).
I did have some issues when I first bought the 36 used a few years ago but got it sorted out...the previous owner had the extractor spring assembly in backwards.

[Mossy Man]

Keep thumb away from slide stop, try again

[44fred]

Never had a problem with my grip before but will try again. My thumb certinally does touch the slide stop but doesn't lift it...or does it?
Thanks Mossy

[teflondog]

Is the slide locking back after each shot or is it not locking back after the last round? If the slide isn't locking back when the mag is empty, I would replace the mag spring.

[SkyHawk]

Just for clarification, you had problems with the slide not locking back after the last round, or you had problems with the slide locking back when it should not be - ie after every shot or after a couple of shots but locking back when the mag was not empty?

If it was the latter, be sure the slide lock and spring is installed correctly. I have seen this happen to several guys at the range when they have installed the slide lock improperly installed so that the spring was not captured correctly by the top takedown pin. I have fixed every single one of them in a minute. I recently did it for a guy who bought a police trade in G22. After every shot or every two shots the slide would lock back. He said it was happening last time he was at the range, so he went and bought new mags and a new recoil spring assembly, came back out and it was still happening. That is when I met him for the first time. I removed his slide lock, reinstalled it the right way and the gun ran flawless after that.

If the slide lock spring is not installed UNDER the top pin, the slide lock will bounce around. You can even rack the slide in your hand manually and watch the slide lock. If it is moving, you have it installed wrong. If you remove the slide, and you can bounce the slide lock up and down with your thumb and it does not return to position with authority, it is not right. You can also rack the slide and every few times it will lock the slide back - another sign it is installed wrong. When the gun fires it is much more likely to bounce that slide lock into the 'hold slide' position if the spring is not captured right. The slide lock should have a pretty positive tension on it keeping it down, that is when you know it is right.

[44fred]

Thank you Sky.
I just checked and the spring is under the top pin. That spring is pretty lite though. I can move the slide stop pretty easily so I'm probably hitting it with my right thumb...I'll focus on not doing that.

[SkyHawk]

Ok you may want to remove the trigger pin, remove and inspect the slide stop and spring and then reinsert it. Do not remove the top pin. I have seen some of these where the spring is under the pin but also splayed out sideways under it. It usually happens when people put the slide stop in before putting in the top pin. The top pin should be installed before the slide stop is installed or it will fequently tweak the spring.

The slide stop should bounce back down when lifted, with authority - it shouldn't be light. If everything feels Ok, then yes watch your thumb

[TATER313]

Keep thumb away from slide stop, try again

Agreed

[44fred]

Ok you may want to remove the trigger pin, remove and inspect the slide stop and spring and then reinsert it. Do not remove the top pin. I have seen some of these where the spring is under the pin but also splayed out sideways under it. It usually happens when people put the slide stop in before putting in the top pin. The top pin should be installed before the slide stop is installed or it will fequently tweak the spring.

The slide stop should bounce back down when lifted, with authority - it shouldn't be light. If everything feels Ok, then yes watch your thumb

I'll need to get my paws on another Glock to compare. That spring is well, so thin I can't see how it could hold the slide stop down at all with very little upward pressure.
Thank you again guys

[tmh1]

Agreed that the slide-stop spring tension feels pretty light on a G36. But if you manually lock the slide back (no magazine), and then you pull the slide back slightly, the slide-stop should freely and quickly drop to its resting position with an audible "clink". If not then there may be spring or some other interference (or gunk?) issues.