CZ 75 P-01 Hammer Pin Backing Out

[Rock-it3]

I have had that happen once, when a gunsmith with little CZ experience forgot to reinstall the retaining pin. It only took one or two magazines full for the hammer pin to move so far out I felt it on my thumb, which is how I knew something was wrong.
Just to clarify, you said it is a relatively new gun, but:
1. Are you the first owner?
2. Have you disassembled it and removed the sear cage at all?
3. Has anyone else disassembled it for any reason at all?

I haven't had mine apart in quite a while, but my recollection is the retaining pin is trapped in its hole when the sear cage is installed, so there is no way for it to come out when assembled. Either it was never there, or it was never re-installed after someone had it apart.

1. I bought the gun brand new from a reputable shop at the end of September, so I'm the first owner and th gun 2 months old.
2. I've owned guns for over 40 years, and have not ventured into doing any type of repairs myself. Field stripping for cleaning is all I do in terms of disassembly.
3. No to your third question.

Thank you.

Sorry, but I had to ask those questions. The pin is a slip-fit pin, since there is now way to drive it out with a punch. It can easily slip out of the hole if the pistol is dis-assembled and turned upside down. The pin is also very small, so easy to lose, and not likely to draw attention to itself if it falls out of its hole.

It would seem the pin was not installed at the factory, so CZ should take care of you. I hope they do, and I hope the pistol shoots well for you.

[hongrn]

This is the part you need:  https://shop.cz-usa.com/hammer-pin-retaining-peg-75-850420026001.html

It’s not hard to install, plenty of videos on Youtube showing how to disassemble and re-assemble once the peg is in place.

Thanks man. $2 part knocking out a $700 gun...

[bonj]

I seriously question the CZ quality control program or lack of. They are systematically shipping guns with parts that have burrs or out of tolerance, based on my two recent P-01 Omega warranty returns and now apparently missing parts! May have to go with Smith & Wesson going forward, who has an excellent customer service Dept from my recent experience.

Yeah good luck with S&W. My last 2 S&W's went back multiple times before they were fixed. One returned twice and one returned 3 times so I can tell you plenty about who has a better warranty dept and it ain't S&W.
Of course they all do have their QC issues from time to time so there's that as well.

Thanks for the insight Si Vis. Personally I never had to return a gun to S&W. But they did send me a new rear sight for my S&W Compact M&P .22 at no charge.

[2morechains]

This is the part you need:  https://shop.cz-usa.com/hammer-pin-retaining-peg-75-850420026001.html

It’s not hard to install, plenty of videos on Youtube showing how to disassemble and re-assemble once the peg is in place.

Thanks man. $2 part knocking out a $700 gun...

Beats heck out of sending your gun back to CZ-USA, waiting however long for them to warranty it, and then waiting for it to be shipped back to you. 

[hongrn]

Beats heck out of sending your gun back to CZ-USA, waiting however long for them to warranty it, and then waiting for it to be shipped back to you.

I saw the videos. I have zero confidence that I'll be able to reassemble the cage unless there's a person next to me who's knowledgeable enough to coach me. Anybody in Orange County, CA who can help me with this? Thanks.

[2morechains]

You only need to remove the sear cage, not disassemble it. 

[SI VIS PACEM PARRABELLUM]

Beats heck out of sending your gun back to CZ-USA, waiting however long for them to warranty it, and then waiting for it to be shipped back to you.

I saw the videos. I have zero confidence that I'll be able to reassemble the cage unless there's a person next to me who's knowledgeable enough to coach me. Anybody in Orange County, CA who can help me with this? Thanks.

You do not have to disassemble the sear cage but you do however have to remove it and that will require a slave pin slid in place of the sear pin which keeps the sear cage in the receiver. You can order the slave pin from Cajun Gun Works if you want to attempt the job yourself. If you do not want to do it or cannot find a gunsmith who can help I would highly recommend you just allow CZ-USA to take the pistol back and make the repair under warranty.

[Rock-it3]

You only need to remove the sear cage, not disassemble it.

I believe (I may be wrong though) the safety detent and spring need to be removed as well, and they can be tricky to put back in.

[bonj]

Send it back to CZ for free! They are fast in warranty work from my experience. Besides, they may find some other anomaly that needs fixed, like a trigger adjustment for parts with burrs.

[SI VIS PACEM PARRABELLUM]

You only need to remove the sear cage, not disassemble it.

I believe (I may be wrong though) the safety detent and spring need to be removed as well, and they can be tricky to put back in.

No this is a P-01 we're talking about so it's a decocker model not a manual safety type so there's no detent or spring to worry about.

[Rock-it3]

You only need to remove the sear cage, not disassemble it.

I believe (I may be wrong though) the safety detent and spring need to be removed as well, and they can be tricky to put back in.

No this is a P-01 we're talking about so it's a decocker model not a manual safety type so there's no detent or spring to worry about.

Ahh, gotcha. Thanks for the clarification.

[hongrn]

Got an update on this issue. I called CZ-USA, and they will send out a retaining pin via FedEx ground. They agreed to authorize my local gun shop to install the pin, since it will take CZ up to 5 weeks to get the work done. The shop has gunsmith services, so it should be OK. Thoughts?

[Rock-it3]

Make sure your gunsmith is familiar with CZ's. The one I used, through my local gun store, was not familiar with CZ's, and he drove the safety lever out by sheer force, chipped the polycoat and dinged the frame, sheared off the sear spring leg, which nestles into a notch in the safety lever (and decocker) shaft, and lost the pin you are also missing. That's how I know the pin you speak of.

[Earl Keese]

Absolutely make sure your smith is experienced with de-cocker CZ's. Otherwise, you'll most likely be sorry.

[PilatusTurbo]

Yeah, the sear cage removal with slave pin is no easy task.  I was able to do two of them, but slowly, good lighting, and watching the instructional videos very very closely.  I know exactly what Rock-it3 is talking about.  Ensure the gunsmith knows their crap.  If you force the decocker out and don't realize the easy as hell trick to removing it, by simply and gently lifting the sear spring leg out of said notch, it can get stupid.  Otherwise, it shouldn't be too bad to repair.  Sorry to hear your P-01 was missing a part.  The P-01 is a fantastic weapon.  I am a member of many of these forums using this same handle, and have owned and own a lot of gun brands.  They literally ALL can have this happen. 

A call to CZ the other day regarding a simple question was the simplest I've ever had, of the few or so I've had calling gun companies.  CZ answered the phone within seconds of me choosing the option I needed, and the rep knew precisely what I was talking about.  It was nice to get a rep that actually was familiar with the weapon I had questions about.  I was impressed, and that's my first interaction with CZ USA. 

I'm sure it'll work out.