Author Topic: Is the P-10 C firing pin block/safety a flawed design? (UPDATED)  (Read 1161 times)

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Hickeroar

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UPDATE:
I’ve contacted CZ, and they’ve educated me on how the system works, and why it is indeed safe. I wrote up a full comment later in this thread explaining their take on the “safe-action” system, but it is indeed safe. You can read on if you want to see that explanation. :)


ORIGINAL POST:
————————————-

I made a video to demonstrate what I'm seeing. I have a 2018 model with the anti-rotation fix in place, and I showed this in the video.

I asked on Reddit, and I'm not the only one experiencing this. I had multiple people PM me (and one reply in the thread) telling me that they also see this behavior, and none of us knows if this is somehow expected, mitigated by some other part of the mechanism, or something else. The thread ultimately got buried, but only one person replied saying theirs did not behave similarly, so I ultimately don't know how common this behavior might be, if it is indeed bad.

Here's the video:


Steps:
  • Clear and field strip the pistol
  • Pull the striker rearward until the block/safety engages.
  • Push the striker forward (toward the barrel).
  • In my case, and in the case of at least some other users, the block simply slides out of the way and allows the striker to move forward.
  • About 1 in 10 times, it does seem to properly grip, and doesn't slide forward.
  • When it DOES properly grip, I can wiggle the striker side to side and it fails again.

So, is this nothing to worry about because some other aspect of the mechanism mitigates it, or is this a potential "big deal?"

The spring on the safety is in its proper place, functions as expected, and is in good shape. I tried to show that at the end, but it may not be clearly visible. I probably should have demonstrated that I could pull it back and it does spring back into position against the striker, but oh well.
« Last Edit: April 10, 2019, 11:12:35 PM by Hickeroar »

Offline mountaineering

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is the striker block spring broken or faulty (no or not enough tension)?

Hickeroar

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No, it functions normally. I can pull it back and it springs back into it’s position.

It almost appears like the metal surfaces that are meeting are not squared off against each other properly, and so they’re just sliding off when pressure is applied.

I’m currently “emotionally” preparing to have to send my baby in to CZ, but I’m hoping someone with some inner knowledge of this design can assure me this is normal.

Offline dwhitehorne

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I want to say this exact same question came up on the forum a year or two ago. The issue with manipulating the striker safety off of the frame is you don’t have the nub on the trigger bar holding it all in place. Also what wiggling of the striker occurrs when the gun is together and in battery and a loaded magazine in place?  The only way to truly test the striker safety is by dropping it while full assembled.

I believe if you take the slide and recoil spring off your pistol and turn the slide upright the barrel will fall out. The barrel falling out is a huge problem but not an issue when the pistol is together.

If you think it is broken send it back to CZ. David

Hickeroar

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Yeah, I had the thought about the trigger bar as well. I just don't know what it all looks like and works like when it's fully put together. No other firing pin block I've ever seen has anything resembling this design. Seems like CZ just decided to roll their own for some reason.

I have thought about drop testing it myself, but I'd probably end up damaging the nose of the barrel or other internals (such as the locking block) in the process. I emailed CZ about it and sent them my video link, so maybe they'll get back to me and let me know that I can stop worrying.

Edit: From what I can tell (comparing positions of parts in their proper positions), when the trigger is in the forward position, there would be no contact between the "nub" and the firing pin block. The "nub" would be about 1/8" - 1/4" in front of the block at that point. That nub is also what looks to be the part that pulls the block OUT of the way, not holds it IN the way.
« Last Edit: April 09, 2019, 11:05:53 PM by Hickeroar »

Hickeroar

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Does anyone else have a P-10 C who can confirm or deny that this is happening for them?

Offline seebee62

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Contact CZ and ask if this the proper function.
With the slide on I believe it does what it’s meant to do.


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Hickeroar

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I contacted them just after making this thread, but I don't know how long it's going to be before they get back to me. That's why I was hoping someone who's knowledgeable about the inner workings around here would be able to chime in... CZ is not the fastest at replying to support or warranty requests.

If it turns out this is not normal behavior, there are probably a sizeable number of people out there with this issue considering I got a few affirmative responses from my 2-upvote reddit thread last week...

Offline Grendel

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I would place more faith in the membership of this forum than the CZ ‘experts’ on Reddit. If people here don’t see a problem then I would not concern myself.
Corruptissima re publica plurimae leges - Tacitus

Inter arma enim silent leges - Cicero

I wasn't born in America, but I got here as fast as I could.

Hickeroar

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I would place more faith in the membership of this forum than the CZ ‘experts’ on Reddit. If people here don’t see a problem then I would not concern myself.

What I meant is that people on Reddit said they were seeing the same behavior I am, not that they said it's a problem.

No one there nor here has yet confirmed or denied that it's a problem, so...hopefully CZ gets back to me. The closest I've gotten from anyone yet is effectively that "it's probably not a problem." :-/

Offline armoredman

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Things work differently when disassembled or partially disassembled. Have you had any issues while firing? I am willing to bet the eingeers at CZ have this one pretty much under control, but if you need real expert assistance, call 1-800-955-4486 and ask for the gunsmith.

Hickeroar

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Things work differently when disassemble or partially disassembled. Have you had any issues while firing?

No issues firing, but this wouldn't affect the "reliability" of it.

From what I can tell by looking at the contact points when it's assembled, there's nothing in contact with the striker block when it's assembled that would hold it in place, so I'm not sure about the "it works differently when assembled" idea.

I could be wrong, but I'm 90% sure I know exactly how this pistol's action works from trigger pull to striker release, and what all the internals do, so I'm just hoping there's an expert around here who can comment a positive "yes" or "no" on it and confirm or correct me. It's not a complicated system, so I'm hoping maybe I'm just missing something obvious.

I'll call CZ tomorrow if they don't reply to my support request. Thanks for the reply.

Offline apeaks24

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Contact CZ and ask if this the proper function.
With the slide on I believe it does what it’s meant to do.


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It does. It's nothing wrong with it. Mine all do that with the slide off. Perfect function on all of them.


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Hickeroar

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Contact CZ and ask if this the proper function.
With the slide on I believe it does what it’s meant to do.


Sent from my iPhone using Tapatalk Pro
It does. It's nothing wrong with it. Mine all do that with the slide off. Perfect function on all of them.


Sent from my iPhone using Tapatalk

Thanks. I’ll update with what CZ says as well.

Offline apeaks24

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Contact CZ and ask if this the proper function.
With the slide on I believe it does what it’s meant to do.


Sent from my iPhone using Tapatalk Pro
It does. It's nothing wrong with it. Mine all do that with the slide off. Perfect function on all of them.


Sent from my iPhone using Tapatalk

Thanks. I’ll update with what CZ says as well.
Thanks


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