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Discussion Starter · #1 ·
I’m new to CZ’s and have a recently purchases (new) CZ75B and now have almost 800 rounds through it. At about 500 rounds the trigger pin starting walking out and I replaced it with a CGW floating trigger pin and also changed the trigger return spring to their reduced power version (to make it easier for me during dry fire).

What I’m running into is that on occasion the trigger does not seem to reset fully and pushing it forward doesn’t help. If I pull on the trigger again (after fully releasing) it will fire properly on the next trigger pull. This is without doing anything else.

My last range session it happened 4 times out of 114 shots (total of 6 different mags, each a 19 rounder) with a different mag each time and it was never the first or last round.

Any ideas as to what to look for? Did I mangle the TRS when I replaced it (it was a pain to get in) or push something out of alignment? Or ???

Appreciate you folks helping a CZ newbie (although experienced with other firearms).
 

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Firearm Gun Trigger Airsoft Airsoft gun
I have bought and sold off many guns after owning them for several years continually upgrading my collection to the very best most reliable guns I can afford.The CZ-75B is at the top of the heep.
I have kept mine original right out of the box.It never fails including 1000's of reloads.It's one of my favorite treasured guns.
Congrats on your new gun,I hope you like yours as much as I like mine!
 

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I’m with Flying Tiger, I have 1000’s of rounds, mostly reloads, through my SP01 with no problems. I would contact CZ USA and tell them the problems you are having.
 

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The CZ75B has an unusual trigger system. Part of this is that the reset is not complete until the trigger is almost all the way forward. I think your reduced power trigger return spring is not allowing the trigger to fully travel all the way forward. Sounds like the disconnector is not allowing the sear to pop back onto the hammer/sear engagement shelf. Put it back to stock and use another gun to dry fire with. This is a tactical gun and not a target gun. Its trigger has to be 100% operational all the time.

As for the trigger pin walking out, remove the pin and put a few pin pricks from a small center punch on the area of the pin that fits into the frame. That will lock the pin into the frame when the pin is driven home. Only do one end, the last end to enter the frame when re-assembling the trigger pin into the frame.

LDBennett
 

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Discussion Starter · #7 ·
I’ve rechecked everything that I could including the movement of the trigger bar when the trigger is released and everything looks fine. Even removed and reinstalled the trigger spring.

Even though I know it was clean I’ve re-cleaned the gun and blasted the sear cage (w/Hornady one-shot gun cleaner & compressed air). Nothing came out that I could see.

Extensively dry-fired (over 100 pulls in DA and at least 50 in SA) without a hitch….but that was the case before the malfs during my last range trip.

Unfortunately, I won’t be able to get to the range to try again until early next week. I will post results – and maybe more questions – after that trip.

Thanks for all of the input.
 

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Discussion Starter · #8 ·
Went to the range yesterday and ran 216 rounds – problem occurred 6 times (different mags, sequence in mag, etc.).

After doing some more ‘net research I came about the info. on false resets related to the trigger bar spring not riding perfectly in the trigger bar.

Closely – lots of light and a magnifier with the grips off for a bottom view – I did see where the right side was barely out of the groove whereas the left side was riding perfectly within the groove. So, I bent the right side enough to ride in the groove and dry fired some more – about 100 DA’s and 25 SA’s (racking the slide each time) without a hitch. But based upon the low occurrence rate that may not reflect the real world.

Unfortunately, I can only get out to the range about 1xweek so it will have to wait until next week to find out if this fixed the problem or not.
 

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I have a CZ Shadow 2 and the trigger is outstanding, but I know that does not help your problem. I think I would call the factory rep and return the weapon. I have called the factory once and received excellent advise and in a timely manner.
Good Luck

Larry
 
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