CZ P09 Light Strike and Spring Question

[Claymore504]

So, in al my P07/P09 handguns I have been running the HS-18 yellow hammer spring for years and never had an issue. In one P09 I decided to go with the 15# gold hammer spring and all has been well until last range session. I had one light strike that did go off , but on second trigger pull it fired. Ammo was 124gr Golden Saber and its what I run for defense ammo. This P09 is my home defense handgun, so the one light strike has my attention. Should I go to the yellow spring just to be safe, or not worry about it? The 15# gold spring has maybe 800 rounds on it.


Also, it seems that OEM recoil springs for the P07 and P09 can not be had. I have been on the witing list with CZ's webstore and CGW for over a year. I see that CGW has the stainless guide rod. Is that a good choice for a defense pistol, or just for gaming? If you do use it for defense/duty, what recoil spring are you using? The ones on CGW website says they are good for reduced power loads. I am using full power factory loads.

[Earl Keese]

If it went bang on the second trigger pull, I would suspect that the primer wasn't fully seated. I've used the CGW SS guide rod in my P07 and P10 for thousands of rounds without issue.

[Claymore504]

Thanks for the insight. So what recoil springs are you using?

[Earl Keese]

https://cajungunworks.com/product/recoil-spring-for-p-07-09-and-p-10-c/

[CCWLearner]

I run the CGW 15 lb hammer springs in my P-07's and have never had light strike issues with them.  I have the 18 lb hammer springs as well but never had a reason to revert back to them.

I also have the CGW steel guide rods and use the 18 lb recoil springs for my factory standard pressure defensive and range ammo.  They also cycle with lighter loads like Federal Syntech Action Pistol, and don't seem to have any issue with heavier +P or NATO spec rounds either.

The only light strike issue I ever had with either of my P-07's was due to me over-polishing a firing pin block plunger.  It was intermittently hanging up the firing pin somehow.  I replaced the part and never had another light strike, with any ammo I use, in any configuration of my pistols.

If you haven't been into your firing pin channel on that pistol lately, I'd suggest stripping all the parts out and giving the parts a good cleaning and inspection.  Make sure nothing is damaged on your firing pin, especially in the slots where the firing pin block plunger and retaining pin engage, and make sure there isn't any debris or excessive goop in there.  I try to keep any liquid oil or grease out of and away from my firing pin channel to avoid gumming it up.  I use Eezox dry lube inside the channel and on all of the parts and make sure it is totally dry before re-assembly.  Other than that I'd suggest just degreasing everything in there and running it completely dry.

[Claymore504]

Thanks guys. I was in the firing pin channel about 800 rounds ago when I installed the CGW firing pin and spring. I will pull it though and give it a good cleaning just to do it and take a look at everything. Thinking it was just a primer issue. Sure was nice to be able to just pull the trigger again and have the round go off! Love hammer fired guns.

Guess i will give the CGW recoil springs a go. I was just thrown off since it says in the description that they are ideal for low power loads. What is the stock recoils spring weight?

[eastman]

did you also install the reduced power firing pin spring?

[Claymore504]

@eastman - Yes I did. It has the CGW extended firing pin with spring.

[Hammer Time]

I run the #15 hammer spring (CGW) with the extended firing pin and have never had an issue. If you've only had one light strike, I would bet is was ammo related, and not the gun.

[Claymore504]

Fully agree at this point, Hammer Time.

[DOC 1500]

Human error in Manufacturing can even cause the finest ammo to fail once in awhile.
I wouldn't be concerned until it became something on a regular basis with really good ammo.
And remember do not oil the firing pin Channel. You can put a super light coating on the firing pin and then wipe it off.

[eastman]

@eastman - Yes I did. It has the CGW extended firing pin with spring.

that supports the "high primer" theory.

After I did the upgrade to a 15# spring and extended firing pin in my P-07 Duty, I tested with a couple mags full of Tulammo to see how it would do on the hardest primers I could find.

[DOC 1500]

@eastman - Yes I did. It has the CGW extended firing pin with spring.

that supports the "high primer" theory.

After I did the upgrade to a 15# spring and extended firing pin in my P-07 Duty, I tested with a couple mags full of Tulammo to see how it would do on the hardest primers I could find.

A N D 🤷

[eastman]

@eastman - Yes I did. It has the CGW extended firing pin with spring.

that supports the "high primer" theory.

After I did the upgrade to a 15# spring and extended firing pin in my P-07 Duty, I tested with a couple mags full of Tulammo to see how it would do on the hardest primers I could find.

A N D 🤷

holes appeared in the paper about where I wanted them to be   

[DOC 1500]

@eastman - Yes I did. It has the CGW extended firing pin with spring.

that supports the "high primer" theory.

After I did the upgrade to a 15# spring and extended firing pin in my P-07 Duty, I tested with a couple mags full of Tulammo to see how it would do on the hardest primers I could find.

A N D 🤷

holes appeared in the paper about where I wanted them to be   

👍