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I beg your indulgence since I'm starting a new thread about this issue as I fear many people who may have offered help previously have been jaded by the lengthy and nebulous original.
I'm posting this here in hopes that I reach someone knowledgeable. I've asked at the CZfirearms.us forums and I've asked CGW and have been given some good advice but nothing has fixed the issue yet.
Background:
I wonder if you folks can help me with an issue I'm having with failure to reset ( NOTE: there were hints of this issue before I installed the CGW 75700 Omega kit so I don't think it's an issue with CGW parts, which appear to be excellent and really transformed both DA and SA trigger).
I beg your patience while I go over some history that may or may not help you more knowledgeable people diagnose my problem.
I have an original type CZ75B Omega, with the black curved trigger and the standard non-convertible safety. I got it second hand, and it looked as new. (FWIW I spoke to CZUSA about my issue and they were friendly but said it was out of warranty and I’m not the original owner so they’d have to charge me $120 to look at it, plus whatever work and parts. I’m fairly handy with tools and minor gunsmithing and I prefer to solve problems myself if possible.)
I initially had an issue where the OEM unmodified pistol would sometimes fall to the half-cock notch from the DA stroke, or fail to ignite primers. Not every time, but it did it both in dry and live fire.
I called David at CGW after he offered help on another forum and he asked me to send him my hammer which he did, and he modified it and sent it back no charge, which was super cool. It seemed to fix my issue, but the half-cock no longer functioned (when lowering the hammer slowly with finger off the trigger, the hammer fell all the way to the resting position, and when cocking the hammer slowly there was no half-cock position).
I shot a few magazines through it but it started failing to ignite primers in the DA stroke, and many of them had zero contact with the firing pin. The trigger also seemed to have a sluggish reset at times... like it didn't want to reset but it still did (see below).
I decided to try the CGW 75700 Omega kit to see if a new hammer/firing pin/disconnector/springs/whatever would fix my weird non-functional pistol. (I mention the above only because it may help you diagnose whatever other issues my pistol may have.)
The CGW Omega kit went in without issue, and I shot a few magazines DA and SA without problems. The DA stroke is much smoother and a couple lbs lighter, and the SA is exactly what I was looking for, very crisp 4 lbs, short break with minimal overtravel and a great reset. I used the white sear spring.
HOWEVER then I started having failures to reset, particularly after a DA shot. The trigger doesn't reset, but if I put a little pressure on the back of the trigger it clicks and resets.
I would really prefer to fix this issue myself if possible. I've READ about some people having issues with reset caused by a bent trigger bar (they said). I've also read that Mec-Gar mags can cause some sort of damage or bend the bar or spring (I have a couple mec-gar 16-round mags and a couple OEM 16-round mags, and a 17-round ACT mag). I've read somewhere that CGW says that if your OEM roller is over a certain size I need to call CGW. My OEM roller was .2395" but now the 75700 kit roller is installed. I can’t find the source of that info now.
I've also read that trigger reset issues can be caused by the trigger bar spring not fully resting in the groove on the bottom of the trigger bar. Mine appears to be where it's supposed to be.
Anyway, any expert ideas are more than welcome. I replaced the trigger bar and it worked for 12 rounds and then started to feel rough and then stopped resetting? Should I replace the sear? (does that even come into play here?) Any other ideas for stuff I should try?
Here's a video of the issue if it helps.
UPDATE TODAY: So... more mysteries. I ordered a new trigger bar and installed it today, along with the OEM trigger return spring just in case. Initial feel was excellent, everything functioned and reset okay when dry cycling. Took it to the range, loaded a full 16-round mag, and the first few shots felt great. Then with each subsequent shot I could tell the reset was getting rougher and by the last 2 shots, failed to reset again.
I'm at a loss... what else could the problem be? It's obviously something that gets exacerbated by recoil/live fire. Has anyone ever heard of an issue like this? It's driving me CRAZY.
I'm posting this here in hopes that I reach someone knowledgeable. I've asked at the CZfirearms.us forums and I've asked CGW and have been given some good advice but nothing has fixed the issue yet.
Background:
I wonder if you folks can help me with an issue I'm having with failure to reset ( NOTE: there were hints of this issue before I installed the CGW 75700 Omega kit so I don't think it's an issue with CGW parts, which appear to be excellent and really transformed both DA and SA trigger).
I beg your patience while I go over some history that may or may not help you more knowledgeable people diagnose my problem.
I have an original type CZ75B Omega, with the black curved trigger and the standard non-convertible safety. I got it second hand, and it looked as new. (FWIW I spoke to CZUSA about my issue and they were friendly but said it was out of warranty and I’m not the original owner so they’d have to charge me $120 to look at it, plus whatever work and parts. I’m fairly handy with tools and minor gunsmithing and I prefer to solve problems myself if possible.)
I initially had an issue where the OEM unmodified pistol would sometimes fall to the half-cock notch from the DA stroke, or fail to ignite primers. Not every time, but it did it both in dry and live fire.
I called David at CGW after he offered help on another forum and he asked me to send him my hammer which he did, and he modified it and sent it back no charge, which was super cool. It seemed to fix my issue, but the half-cock no longer functioned (when lowering the hammer slowly with finger off the trigger, the hammer fell all the way to the resting position, and when cocking the hammer slowly there was no half-cock position).
I shot a few magazines through it but it started failing to ignite primers in the DA stroke, and many of them had zero contact with the firing pin. The trigger also seemed to have a sluggish reset at times... like it didn't want to reset but it still did (see below).
I decided to try the CGW 75700 Omega kit to see if a new hammer/firing pin/disconnector/springs/whatever would fix my weird non-functional pistol. (I mention the above only because it may help you diagnose whatever other issues my pistol may have.)
The CGW Omega kit went in without issue, and I shot a few magazines DA and SA without problems. The DA stroke is much smoother and a couple lbs lighter, and the SA is exactly what I was looking for, very crisp 4 lbs, short break with minimal overtravel and a great reset. I used the white sear spring.
HOWEVER then I started having failures to reset, particularly after a DA shot. The trigger doesn't reset, but if I put a little pressure on the back of the trigger it clicks and resets.
I would really prefer to fix this issue myself if possible. I've READ about some people having issues with reset caused by a bent trigger bar (they said). I've also read that Mec-Gar mags can cause some sort of damage or bend the bar or spring (I have a couple mec-gar 16-round mags and a couple OEM 16-round mags, and a 17-round ACT mag). I've read somewhere that CGW says that if your OEM roller is over a certain size I need to call CGW. My OEM roller was .2395" but now the 75700 kit roller is installed. I can’t find the source of that info now.
I've also read that trigger reset issues can be caused by the trigger bar spring not fully resting in the groove on the bottom of the trigger bar. Mine appears to be where it's supposed to be.
Anyway, any expert ideas are more than welcome. I replaced the trigger bar and it worked for 12 rounds and then started to feel rough and then stopped resetting? Should I replace the sear? (does that even come into play here?) Any other ideas for stuff I should try?
Here's a video of the issue if it helps.
UPDATE TODAY: So... more mysteries. I ordered a new trigger bar and installed it today, along with the OEM trigger return spring just in case. Initial feel was excellent, everything functioned and reset okay when dry cycling. Took it to the range, loaded a full 16-round mag, and the first few shots felt great. Then with each subsequent shot I could tell the reset was getting rougher and by the last 2 shots, failed to reset again.
I'm at a loss... what else could the problem be? It's obviously something that gets exacerbated by recoil/live fire. Has anyone ever heard of an issue like this? It's driving me CRAZY.
