P09/07 thread on potential major issues

[CCWLearner]

Neither of my P-07's have done this, stock or with CGW mods.

My range / dry-fire / test P-07, the one I have been dry firing a lot lately, has a CGW .220 roller which replaced the stock .210 roller.  It seems to do a much better job of actually rolling and feels like it improved the DA pull.  It also has the CGW hammer, SRK, reduced FPB spring, .020 sear spring.  I dry fire it often, like usually daily at least 20-30 single action pulls with a MantisX, where I am being very slow and deliberate about my trigger break.  I haven't noticed anything like this, although I am quite familiar by feel with the SA "creep" on the stock hammer and the cleaner break of the CGW hammer.

I actually have another issue currently, a really infrequent light strike with multiple different kinds of ammo.  Like today I had 1 out of 150 WWB 9mm NATO 124 gr light strike once, ignite on second strike.  Previously it was 1 out of 50 Fiocchi After reading around various threads here and elsewhere I think it may be my FPB plunger is out of spec, probably because I polished it too much.  The overall length of it is .005 shorter than an unpolished one I have as a spare, so I popped the spare in tonight, and will test it further on my next range trip.  If that doesn't work, I may send it in to CGW to take a look and either adjust the FPB timing by reducing the shelf size or fix whatever else they may find wrong with it.

Meanwhile my carry P-07 is running CGW springs but stock hammer, FP, roller, no SRK, unpolished internals, and has never had a single malfunction, period.  Well except that time I didn't get the mag release rod back in correctly after swapping it to lefty, and it fell out at the range, or when my son didn't lock the mag in and experienced a "failure to feed" because the mag had started sliding out, but these are problems we created for ourselves...

[schmeky]

We have had a few P-07/09's that could malfunction when the trigger was not used as intended:

By using the second joint in the trigger finger and applying pressure so the trigger was in a pretty severe lateral "bind", the trigger could twist slightly, the trigger bar could subsequently flex, and under the "stars aligned" scenario, the pistol could fall to half cock.  The palm of the hand was actually encroaching on the front grip strap to even get the second joint of the trigger finger to do this.  No one rationally uses a firearm like this.

Again, this is operating the pistol in an inappropriate and unorthodox manner.  "Normal" operation of the trigger causes no issues.  Keep in mind the overwhelming majority of CZ's could not be made to do this, no matter how hard we tried the "unorthodox" method.

So, we examined the phenomenon that can cause this, which lead to one small change to our P-07/09 disconnector.  We also designed a new sear pin that will take the lateral movement out of the sear, which will keep the disconnector in constant alignment with the trigger bar.  In fact, normal/typical trigger bar "flex" will actually make the new design disco work even better.

The sky is not falling.  No one needs to buy any of these parts from us when they are in available.  I question why I am even doing this, but, our goal is to continuously improve the CZ lock work, even if someone uses it in an unorthodox manner.  Our intent was to begin using these new parts in our shop builds and parts kits with no fanfare.

In closing, I trust my life and my families life to my trusty P-09.   

[Grendel]

And there you have it, members of the jury. Much ado about nothing, mountains out of molehills, nonsense parlayed from anecdotal evidence.

Party on!

[badwrench]

We have had a few P-07/09's that could malfunction when the trigger was not used as intended:

By using the second joint in the trigger finger and applying pressure so the trigger was in a pretty severe lateral "bind", the trigger could twist slightly, the trigger bar could subsequently flex, and under the "stars aligned" scenario, the pistol could fall to half cock.  The palm of the hand was actually encroaching on the front grip strap to even get the second joint of the trigger finger to do this.  No one rationally uses a firearm like this.

Again, this is operating the pistol in an inappropriate and unorthodox manner.  "Normal" operation of the trigger causes no issues.  Keep in mind the overwhelming majority of CZ's could not be made to do this, no matter how hard we tried the "unorthodox" method.

So, we examined the phenomenon that can cause this, which lead to one small change to our P-07/09 disconnector.  We also designed a new sear pin that will take the lateral movement out of the sear, which will keep the disconnector in constant alignment with the trigger bar.  In fact, normal/typical trigger bar "flex" will actually make the new design disco work even better.

The sky is not falling.  No one needs to buy any of these parts from us when they are in available.  I question why I am even doing this, but, our goal is to continuously improve the CZ lock work, even if someone uses it in an unorthodox manner.  Our intent was to begin using these new parts in our shop builds and parts kits with no fanfare.

In closing, I trust my life and my families life to my trusty P-09.

Thank you!!!! This is exactly the information I wanted to know..

[badwrench]

And there you have it, members of the jury. Much ado about nothing, mountains out of molehills, nonsense parlayed from anecdotal evidence.

Party on!

True. However,  I'd rather hear it from an expert first.. And we have..Now we know, and that's a good thing.. The issue is settled. Now I need to go order a IWB holster, as my P-07 is closing in on what I consider enough rounds fired to prove reliablity, for EDC.

[Tok36]

I still like the classic CZ75 lockwork better

[Yoni]

CGW thanks for clearing everything up. I didn't lose any love for my CGWP07, I tried to get mine to malfunction and couldn't do it.

[badwrench]

CGW thanks for clearing everything up. I didn't lose any love for my CGWP07, I tried to get mine to malfunction and couldn't do it.

Neither could I, I did get some sore fingers trying, though...

[GeneralSu]

Glad CGW cleared it up. On the other hand, I just bought my P-07 pro package kit the other day, wonder if the new updated parts will be included...

[Winkel]

I had this problem with my P-09.  My daughter could get it to do it but I couldn't.  I saw her do it several times but she actually has better trigger control than I do.

I had my trigger bar spring bent down pretty far to lighten up the DA.  I bent it back up a little and haven't had the problem since.

In this case, I believe it was 100% my fault for 'tinkering' with the function of the gun. 

Just some food for thought.

[schmeky]

Our new disco's will not be in until the middle of this month (September 2018).  However, as I stated previously, we made a change for a problem that I would estimate is less than a percent of a percent. 

No rational reason to change any parts  (because of this aforementioned "issue") whether your CZ is stock or not.  The new sear pins are a couple months away.

[SI VIS PACEM PARRABELLUM]

https://www.m4carbine.net/showthread.php?209390-PX4-CC-vs-CZ-P07

Schmeky,
Glad you cleared this nonsense up. I hate when people post things that are unfounded hearsay or just plain take things out of context and start a firestorm of untruths. The case in point can be found in post #4 in the above link from the OP's original post where in the guy alludes to the 41 page thread and claims that CGW found that 7 out of 10 pistols they had on the shelf had the flaw.

[Iowa_Ross]

Our new disco's will not be in until the middle of this month (September 2018).  However, as I stated previously, we made a change for a problem that I would estimate is less than a percent of a percent. 

No rational reason to change any parts  (because of this aforementioned "issue") whether your CZ is stock or not.  The new sear pins are a couple months away.

Now if we could just get an update on the P-10C Striker housing fix 

[Yoni]

Isn't the solution to the P10, selling it to buy a CGW P07?

Striker fired guns have no soul. They are the prius of pistols!

[SI VIS PACEM PARRABELLUM]

Isn't the solution to the P10, selling it to buy a CGW P07?

Striker fired guns have no soul. They are the prius of pistols!

That would be a satisfactory solution for ANY striker fired pistol. They ain't my thing either.