Author Topic: SAR K-12 trigger job (parts swapping really)  (Read 4778 times)

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Offline MasterJP

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SAR K-12 trigger job (parts swapping really)
« on: October 04, 2020, 12:32:05 AM »
Hi,

Even though I am a CZ and CZ clones fan, this is my first topic here. Please be as gentle as possible. :)

I got my hands on a SAR K-12 for an acceptable price (only mildly gouged).

The trigger was not bad, but not what I hoped. It started around 4.7 lbs. With some dry firing, I was able to get it to 4.5 lbs.
This morning I decided to install some parts I had bought before for other Tanfoglio projects. I am procrastinating forever.

I installed:

The process is explained in several Youtube videos. That is where I learned it. :)
The only thing extra is you need to drive out 1/16" pin to remove the side safety lever on the right side.

Two important things to note:
  • Even though the Xtreme trigger bar guide is silky smooth, it's spring is heavier. I installed the Galloway spring on it.
  • The stock firing pin safety spring overpowers the reduced power sear spring, and the hammer cannot be cocked by hand. The lighter firing pin safety spring from the Galloway kit is required.

Outside of that, I did minimal real trigger job work. I was too lazy to get my Dremmel out.
  • Lightly polish the hammer pin, so it is a bit easier to drive it back. No material was removed.
  • Absolutely minimal polishing of the sides of the sear.
  • Absolutely minimal polishing of the surface of the sear interacting with the hammer. No material was removed.

The results are astonishing and exceeded my expectations. The trigger is super smooth, crisp, and 2.5 LBS. Even if that sounds scary, it is not hair-trigger. It breaks quickly, smoothly, and crisply.
In the afternoon, I was able to shoot 50 rounds through the gun before the range had to close due to an emergency (unrelated ;)).
No issues what so ever, but I used only one brand ammo, the cheaper Herters.


There is only a camel spit at the bottom of the bidet.

Offline 9Parabellum19

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #1 on: October 04, 2020, 12:50:08 AM »
How is the pretravel, over travel, and reset?  Report back after you get some more rounds through it please.

Offline MasterJP

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #2 on: October 04, 2020, 12:53:11 AM »
Pretravel, over-travel, and reset were unaffected by my spring swapping.
Or are you asking about those on the gun in general?
There is only a camel spit at the bottom of the bidet.

Offline 9Parabellum19

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #3 on: October 04, 2020, 12:54:42 AM »
Just in general vs other CZ style guns

Offline MasterJP

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #4 on: October 04, 2020, 01:09:04 AM »
I will try to measure tomorrow, but this is a SA only gun, with the screws set quite well from the factory.
Any comparison with SA/DA CZ will not be apples to apples.
There is only a camel spit at the bottom of the bidet.

Offline jwc007

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #5 on: October 04, 2020, 09:57:09 AM »
Sounds great!  8)  Congratulations on your work on your SAR K-12 Trigger turning out so nicely!  :)

Also, Thanks for posting this!  :)
"Easy is the path to wisdom for those not blinded by ego." - Yoda


For all of those killed by a 9mm: "Get up! You are not dead! You were shot with a useless cartridge!"

Offline MasterJP

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #6 on: October 04, 2020, 12:38:15 PM »
Thank you for your kind words. It is refreshing and encouraging to be accepted politely.
There is only a camel spit at the bottom of the bidet.

Offline Mayhem

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #7 on: November 04, 2020, 07:38:12 AM »
Great info and write up JP,
Question is this the trigger bar guide that you ordered? X037 - XTREME TRIGGER BAR GUIDE. And what model and SN# did you put in on there web site?

Cheers
Ron
Retired USAF

Offline MasterJP

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #8 on: November 04, 2020, 11:14:41 AM »
Hi Ron,

I am guessing you are trying to order from EAA's website.
I ordered from Ben Stoeger's website.
https://benstoegerproshop.com/xtreme-trigger-bar-guide-with-spring-for-tanfoglio-eaa-ifg/
There is only a camel spit at the bottom of the bidet.

Offline Mayhem

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #9 on: November 04, 2020, 01:00:23 PM »
Thanks JP
Got it.

Cheers
Ron
Retired USAF

Offline MasterJP

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #10 on: November 04, 2020, 01:28:25 PM »
Ron,

I am glad I could help.
Btw while you are there, get the light sear springs. They are the final touch, and it makes no sense to pay shipping from somewhere else.
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Offline Mayhem

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Re: SAR K-12 trigger job (parts swapping really)
« Reply #11 on: November 05, 2020, 07:45:13 AM »
10-4
Retired USAF