CZ75B trigger reset/return problem?

[tcj]

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).

 

[viking499]

Check the trigger return spring and the trigger bar spring to make sure they are riding where it is supposed to. Sometimes one io those can get out of their groove or "spot" and cause issues with the trigger and reset

 

[Arizona_Mike]

Also if you have an adjustable trigger you might not have quite enough take-up.

Mike

 

[czhen]

Put the original pin and get a call to CZUSA.
Arizona_Mike, I do believe adjustable trigger come only in 85 combat (over travel) and shadows.
czhen

 

[Arizona_Mike]

Put the original pin and get a call to CZUSA.
Arizona_Mike, I do believe adjustable trigger come only in 85 combat (over travel) and shadows.
czhen

Thanks for the clarification. My Witness Hunter has big take-up and over travel adjustments. I don't own a true CZ yet --doing a 4473 on a G2 P-07 .40 S&W tomorrow!!!

Mike

 

[tcj]

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.

 

[flphotog]

Put all of the original CZ parts back in and see if you have the same issue, if not call CGW and see what they say.

 

[Walt Sherrill]

Thanks for the clarification. My Witness Hunter has big take-up and over travel adjustments. I don't own a true CZ yet --doing a 4473 on a G2 P-07 .40 S&W tomorrow!!!

The CZ-85 Combat had an over-travel adjustment on the back of the trigger. That can be used in almost any metal-framed DA/SA CZ-75-based model (non-Omega). The SA triggers had both overtravel and take-up adjustments, but the SA trigger wasn't intended for use in the DA/SA models. (I've had both -- still have an 85 Combat.)

 

[czhen]

Same here Walt, the only pistol that fulfill all my inquiries on a firearm is the 85 combat, surpassing the 75b for a tad and the BHP.
Waiting for my 85C to smooth the trigger with the usage.

 

[I6turbo]

Same here Walt, the only pistol that fulfill all my inquiries on a firearm is the 85 combat, surpassing the 75b for a tad and the BHP.
Waiting for my 85C to smooth the trigger with the usage.

I'm a big fan of the 85 Combat as well (and the BHP). I think that the reason the 85 Combat didn't far outsell the 75B was because people didn't know what the differences were. I also have a 75B Stainless but the 85 Combat (with both guns stock) is better for shooting enjoyment because of the adjustable sights, lack of a firing pin block, slightly better trigger, and I like the drop-free magazine feature (but you can easily make a 75B drop the mag). I liked the 85 Combat stock, but then I made it really outstanding with the following changes:

CGW 54460 Ultra-Lite Kit using the range hammer spring (very noticeable improvement in DA and also SA trigger, plus very easy to rack the slide (the latter wasn't a problem, but now it's just much lighter)
CZ Pre-B short trigger reset
CGW 6-SAO trigger
CGW Race Hammer Kit
CGW floating trigger pin

Amazing light and creep-free trigger, essentially no camming back before firing, and super-short trigger reset (the trigger operates within the thickness of the trigger, seen below)

 

[czhen]

I have the impression that poor success of the 85combat was in due to a higher prices comparing to the 75B (adjustable sights) and availability.
When the massive market found the 75B, CZ has to churn as much as they could the 75b to supply the demand and again the great demand lately on the rifles line.
After the dust settle, CZ woke a huge line pistol capturing the handgun market, some models had to be put down.
When shadow line came up everyone asked how is so good, explanation the benefit of lack firing pin became vox populi.

tcj I'm sorry if derailed your post a tad, hope you sorted out your issue, CZ75 are not perfect. However, theirs issue are very easy to overhaul.
Keep us post.

 

[tcj]

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 (thanks Viking499) 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.

 

[tcj]

Finally made it to range and no problems after just over 200 rounds; so it looks fixed. When it gets to 500+ without an issue I'll call it good-to-go.

 

[Walt Sherrill]

Finally made it to range and no problems after just over 200 rounds; so it looks fixed. When it gets to 500+ without an issue I'll call it good-to-go.

Seeing as how you found a remedy for the most recent problem and fixed it, it ran fine for 200+ rounds ithout problems after that (when you previously had 6 failures for roughly the same number of rounds fired), because earlier problems were found and resolved, and nothing new has raised its ugly head, I would argue that the gun is well broken in - you've got over 1000 rounds through it now -- and shooting another 300 rounds is unnecessary.