Gen 3 Glock 21 SF troubleshooting

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SBS_ICEMAN

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BC, Lower mainland
Hi glock enthusiasts,

So I have a well used (decently maintained) gen 3 glock 21 SF that is having an annoying but minor problem. Every so often the trigger safety gets momentarily stuck when pulling the trigger. Basically you need to put a bunch of extra pressure on it for a split second to force it into position before continuing with your trigger pull. Again this is only happening once and a while and it only happens on initial trigger pull, not on the reset. It started happening a couple months ago and I have yet to figure out the issue. My current trouble shooting steps are noted below.

-Detailed cleaning and lubing of all parts. Full detailed strip and clean.
-having other shooters fire it and encounter the same issue.
-testing to ensure the safety is still working (IE cannot fire without engaging the trigger safety).
-replicating the problem with the glock partially disassembled. Was not able to notice anything visually.
-tried a different slide and had the same issue.

Any ideas as to what might be the issue? Next steps I should take? For the record this issue has not caused any failures in the firing of the gun. It is basically just annoying the heck out of me. It does throw off my first shot a bit, as I need to apply way more pressure to the trigger than I should. I would say this glock has about 8000 rounds through it. The trigger group was replaced as well as night sights installed 6 years ago at Police Ordnance. I haven't changed any of the internals since then.

Thanks in advance for any suggestions or ideas.
 
Gently push on the trigger safety and see if the safety stick out a bit past the trigger. If it goes flush or a little below the trigger it will not disengage. Therefore, requiring that extra bit of pressure to disengage it. Some guys actually shave off the safety lever so it goes flush with the trigger because they do not like the feel of the safety sticking out a tiny bit.
 
And there is no need to send it to Police Ordnance for a repair...just go to youtube and watch a step by step video and replace the parts yourself, a simple glock disassembly tool is available cheap online, but any punch should do the job effectively. There are only 34 parts on the gun...replace 5-10 and you have an almost brand new gun.
 
Oh yeah for sure. I can service all the internals myself. The parts swap that was done by PO was just because I was having the sights installed. At the time I didn't have the set up to install the sights myself so I bought the sights from them and had them install them. I requested some new internals be supplied and installed at the same time.


my_2_cents said:
And there is no need to send it to Police Ordnance for a repair...just go to youtube and watch a step by step video and replace the parts yourself, a simple glock disassembly tool is available cheap online, but any punch should do the job effectively. There are only 34 parts on the gun...replace 5-10 and you have an almost brand new gun.
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