P07 DA issue

[P07]

Greetings.
So I have that problem which started recently regarding my P07 (9 mm, not duty), where I attempted to pull a successful cycle and failed.
I tend to practice a lot of dry-fire (with proper equipment to prevent mechanical failures in the future), and I mostly practice DA pulls.
Today, I've had a problem which occurred 4 times already, and had never occurred before, where I pulled the trigger completely but the hammer wouldn't strike the firing pin, and stay stuck "on the edge" of its movement process.
The trigger is FULLY pulled, the hammer is FULLY pulled back that way, but it just won't pop forward, as if the trigger pull did not come to a completion.
It is kinda rare, but as I mentioned earlier, it never occurred before, and occurred 4 times already just today.
I don't think I managed to get a full diagnosis of the cause, and that is why I am asking the forum members for any information regarding this issue.
Is it a common issue? known one? how can I fix it?
From what I've noticed so far, this tends to happen when I pull the trigger slowly rather than aggressively or quickly, but as I said, it hasn't happened too many times so far, so I can't be too sure about it.

Thank you.

[P07]

So, it happened 13 times so far. The ratio which this happens is just too often to be a very random issue which should be neglected, and I managed to pull some more info regarding this.
So, it seems like, the trigger just wouldn't squeeze 100%.
That is, to say, I squeeze it with 100% finger power, but something is "blocking" it from being squeezed to the last mm it should squeeze to pull a successful cycle.
That is probably why the hammer looks like its fully cocked but wouldn't pop.
The way I figured this out is because i held my finger in the maximum squeeze position when the hammer stuck of course, then i gave the hammer a gentle tap back and looked at the trigger movement.
The trigger moved like a tenth of a millimeter when I pulled the hammer a slight mm back, and I think this proves that something in the trigger pull mechanism is malfunctioning.
Any ideas how to proceed from here?

[briang2ad]

Call CGW.  It is likely a timing issue and MIGHT be fixed with a new roller. 

[fflmike]

If the gun is stock, I would definitely call CZ customer service.  If it is not stock, what has been done to the gun?

[Raining_Brass]

Mic your roller and buy the next size bigger OD. Problem fixed.

[P07]

First of all, thank you for your replies.
The gun is stock, and yes, I am probably going to contact my local CZ retailer ASAP.
I don't really live in the US but that's not the issue, since I have a lifetime warranty on the gun.
Knowing the gun is stock, any suggestion from you guys before I try my luck with the local CZ retailer?

[Raining_Brass]

Knowing the gun is stock, any suggestion from you guys before I try my luck with the local CZ retailer?

Already answered right above you. That's your fix. $20 + shipping and about 10 minutes of work.

Take out OEM roller. Mic it. Whatever it is, buy the next size bigger from CGW.

[P07]

Oh, how I wish I could buy stuff from CGW.
Thing is I don't live in the US, and cannot get any CGW stuff

[Raining_Brass]

Oh, how I wish I could buy stuff from CGW.
Thing is I don't live in the US, and cannot get any CGW stuff

LAME. In that case sending to CZ is about your only fix as there's no "gunsmithing" that can be done for an out of spec roller.

[P07]

Wanna hear something even more crazier?
Presuming the issue is unfixable, and a replacement gun is offered in exchange for the defected one, I would still not be able to replace my gun due to absurd gun control policy.
I.E. no one is going to revoke my current license for my current gun, but in current reality, I would not be approved to switch guns without risking my license, an option I'd rather stay away from.

[Raining_Brass]

No need to replace the entire gun. Literally one tiny part is out of spec and causing your issue.

[Litshoot]

Crazy laws, let us know what your roller mics out as, someone has a larger one stock , or will mail you a lovely pen pal letter with a tiny piece of metal in it from Cgw, if you send some money back.

[Winkel]

Just spit balling here, but do you ever let the hammer fall without the slide on the gun? 
I'm going off what may be an incorrect recollection but I seem to remember seeing something like this on youtube.  Is there a possibility that his hammer pin is bent?
It might be worth a check.

[P07]

Continuing my P07 journey, I have found a LEGAL way I could purchase the CGW pro-grade upgrade kit.
I am talking about this item: https://cajungunworks.com/product/p-07-p-09-pro-grade-package/
Presuming I am going to purchase it, is there something else I need to take into account before ordering it? Such as a guide rod (https://cajungunworks.com/product/97040-fits-p-07/) or other things?
This is a very risky purchase for me if I don't get all things right, and I'd definitely not want to have a full kit but not being able to use it because I am lacking a tiny spring I did not know was needed for completion.
I don't get this opportunity of ordering gun parts from the US legally very often, so any insights regarding this would be highly welcome.
The use of my every-day carry P07 is for self-defense (I have another one just for competitions, but I'd rather leave it stock for now), does the above-mentioned kit even fit self-defense use or is it considered a competition-only kit?
And also, does that kit make my warranty expire?
(I am going to purchase that kit regardless of the result of contacting my local CZ retailer and see how he's gonna fix my gun)
Thanks.