Author Topic: SP01 manual safety: Help with parts to convert to SAO  (Read 2412 times)

0 Members and 1 Guest are viewing this topic.

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
SP01 manual safety: Help with parts to convert to SAO
« on: January 16, 2021, 11:25:05 PM »
Hello, I just got a SP-01 and want to convert it to SAO. Is everything on my shopping cart everything I need?
Do I really need the Short Reset System package? How much difference in reset distance will it make compared to not having it?
I know on my glock, I can get super short reset by adjusting the overtravel. This is my first hammer fired gun and I don't know much about it yet. Just trying to be budget haha.



Offline Tok36

  • Hero Member
  • *****
  • Posts: 6123
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #1 on: January 16, 2021, 11:42:45 PM »
    In a pistol like the CZ SP-01 with a Firing Pin Block, the CGW Short Rest Kit will reduce the reset distance by about half and reduce the SA pull weight. Some amount of SA pretravel is unavoidable with a FPB Pistol because the FPB requires a certain amount of Trigger travel to function. You can always add further upgrade parts if you feel the need.

Make sure not to over adjust the overtravel set scerw in the face of the Trigger. Proper Sear to Hammer clearance is necessary to avoid the parts rubbing and inducing premature wear.



« Last Edit: January 29, 2021, 03:03:03 PM by Tok36, Reason: Spelling. »
Will work for CZ pics! (including but not limited to all CZ clones)

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #2 on: January 17, 2021, 12:01:56 AM »
     Some SA pretravel is fine with me like my glock and my p10s. In my glock that I tuned for fun, I removed the overtravel as much as I could so the trigger stops super close to the reset point after firing, shortening my reset distance. Does that apply to hammer fired also in a way?

So I don't necessarily need the super short system but it helps further in reducing reset distance right. If I decide to not get it. I would just need to order the trigger, floating trigger pin, and the reduced power return spring? Did I miss anything else?

I fell In love with my friend's 1500$ 1911 trigger but I can't afford that kinda gun haha.
« Last Edit: January 17, 2021, 12:21:32 AM by smallbroken »

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #3 on: January 17, 2021, 12:12:25 AM »
Sorry for double posting but:
   The super curve trigger is pushing my finger up. I tried to gauge the pull weight from that spot and it's like pass 4.5lb to almost 5lb...and flat 4lb if I gauge lower.
If I also decide to reduce the SA pull, what would I need to get maybe a 3lb pull or less..there are so many parts, I'm kinda confuse on what to add to the wishlist so I can slowly collect them.
Thank you for the help.

Offline Tok36

  • Hero Member
  • *****
  • Posts: 6123
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #4 on: January 17, 2021, 01:36:54 AM »
   You are not missing anything to convert to SAO. A secondary asset of the SRS kit is the Extended Firing Pin and Reduced Power FP retrun spring that are included. They facilitate primer ignition as you reduce the Hammer Spring weight to obtain a lighter pull weight. As well as the improved Firing Pin Retaining Pin and the FPB Plunger Spring.

If you do not get the SRS kit, i would add in an improved CGW Firing Pin Retaining Pin. The factory FPRP is a weak point. This pin in included in the SRS kit.
61100 Firing Pin Retaining Pin (A 3mm or smaller punch is required for removing this pin)
https://cajungunworks.com/product/61100-tempered-spring-steel-firing-pin-retaining-pin/

For a 3lb SA trigger pull, an after market Hammer may be required. As you reduce the SA pull weight with the factory Hammer, at some point things start to feel real mushy. All of the springs, the Hammer and polishing, contribute to the trigger pull weight.
Will work for CZ pics! (including but not limited to all CZ clones)

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #5 on: January 17, 2021, 02:23:55 AM »
     Thank you so much! I've forgot about that firing pin retaining pin. Seen videos of them breaking quick with dry firing. I dry fire alot but I use snap caps.
I found a video of someone removing their firing pin block shortening the reset with the SAO trigger. Is that safe? Is there a downside to removing it? and is it fine to just leave the lifter arm?
I thought it was kinda like the glock safety plunger, didn't think it would also shorten the reset lmao. My glock has the rounded plunger, doesn't really affect reset distance..just smoother.

I apologize if I keep going back to glocks, it's the platform I know the most about haha, but I'm slowly selling my glocks. I switched to the p10 and bought the sp01 for fun. I'm going full CZ now lmao. I also apologize asking these noobs questions, just trying to learn more about how everything works on this new to me platform.

Time to go back to cgw site and start adding things on the wishlist to slowly collect, haha.

Offline Tok36

  • Hero Member
  • *****
  • Posts: 6123
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #6 on: January 17, 2021, 03:17:12 AM »
   In a CZ 75 variant, the FPB directly influences the SA reset distance. Removing the FPB essentially turns an SP-01 into an SP-01 Shadow or Pre B CZ 75. CZ Shadows, Tac Sport and other non FPB CZs can have the shortest SA reset distance possible within the platform. When removing the FPB, the FPB Lifter Arm must be replaced with a Sear Spacer. If it is left in place it is possible for it to get jammed up in the hole in the slide from the removal of the FPB Plunger. Installing a wider Pre B/Shadow Sear is another option if you wish to avoid using a Sear Spacer.

   The Firing Pin Block is a drop safety mechanism, much like it is in a Glock and many other pistols. The way that i see it, non FPB models are for range or competition use only. I suggest leaving the FPB intact to start, you can choose to remove it later if you feel the need. The value of the potential gains are debatable, we are only talking about approximately 2mm.

Asking questions is a good way to learn, we all had to start at the beginning.
Will work for CZ pics! (including but not limited to all CZ clones)

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #7 on: January 17, 2021, 12:57:22 PM »
Thank you so much for the help. Starting to get how things work now

I think I'll go with just the SAO trigger for now and see how it feels. Then add the SRS and hammer later. Buying everything at once is a huge blow to my wallet..mostly cuz the sp01 I got is a few days old haha. I've used my friend's sp01 with cgw parts and it felt good but I've never tried/used the DA that's why I decided to SAO mine.
Thank you again

Offline DMY

  • Jr. Member
  • **
  • Posts: 29
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #8 on: January 17, 2021, 07:50:58 PM »
OP,
I've been pondering the same improvements on the same platform. I'm looking forward to your follow up posts after the straight trigger replacement and and SAO conversion. 

For those who have done it, can you describe how much take-up (or creep) is there with the straight trigger replacement, and SRK while keeping it DA/SA? Sorry OP for hijacking your thread.

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #9 on: January 19, 2021, 02:33:32 PM »
     Hey no problem. I ordered the trigger, trigger spring, floating pin, 13# hammer spring, extended firing pin, firing pin retaining pin, and the spacer.
I will try the no firing block build for now and see how it feels. I also plan on getting the a new hammer in the future.

Offline pcar157

  • Full Member
  • ***
  • Posts: 112
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #10 on: January 19, 2021, 08:03:35 PM »
Just to be clear, when the action is converted to SAO, does the SRK really serve any function other than the extended fp/fp spring.  It was my understanding the short reset kit gave the most bang for the buck when the action was in DA/SA.

Offline Tok36

  • Hero Member
  • *****
  • Posts: 6123
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #11 on: January 19, 2021, 08:52:58 PM »
Just to be clear, when the action is converted to SAO, does the SRK really serve any function other than the extended fp/fp spring.  It was my understanding the short reset kit gave the most bang for the buck when the action was in DA/SA.

   The CGW Short Rest Kit serves the same purpose in DA/SA or SAO CZ 75 variant pistols with Firing Pin Blocks . The kit is designed to reduce the SA reset distance while preserving the FPB.

   With the Firing Pin Block Removed or when installed in a Shadow/non FPB CZ some of the kit parts do not serve a purpose. This is because having no FPB automatically offers the shortest SA reset. Adjusting the Triggers overtravel set screw then reduces the SA overtravel. In these instances the Extended FP and springs can be ordered separately if needed.
Will work for CZ pics! (including but not limited to all CZ clones)

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #12 on: January 19, 2021, 11:52:00 PM »
Just to be clear, when the action is converted to SAO, does the SRK really serve any function other than the extended fp/fp spring.  It was my understanding the short reset kit gave the most bang for the buck when the action was in DA/SA.

   The CGW Short Rest Kit serves the same purpose in DA/SA or SAO CZ 75 variant pistols with Firing Pin Blocks . The kit is designed to reduce the SA reset distance while preserving the FPB.

   With the Firing Pin Block Removed or when installed in a Shadow/non FPB CZ some of the kit parts do not serve a purpose. This is because having no FPB automatically offers the shortest SA reset. Adjusting the Triggers overtravel set screw then reduces the SA overtravel. In these instances the Extended FP and springs can be ordered separately if needed.

    That's how I understood how things work, hench why I'm going for the FPB removed route. This gun will just be for fun. If I decide to use it for defensive, I will be getting the SRK.
Edit: I don't need to install the lifter spring with the spacer right? Can't seem to find anything about that.

Offline Tok36

  • Hero Member
  • *****
  • Posts: 6123
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #13 on: January 20, 2021, 12:28:44 AM »


    That's how I understood how things work, hench why I'm going for the FPB removed route. This gun will just be for fun. If I decide to use it for defensive, I will be getting the SRK.
Edit: I don't need to install the lifter spring with the spacer right? Can't seem to find anything about that.

   Correct, both the FPB Lifter and FPB Lifter Spring are replaced by the spacer alone. The spacer essentially makes the Sear wider. The CZ Shadows, Pre B and other non FPB CZ pistols have no FPB Lifter Arm, they come factory with wider sears, so they do not need a spacer. You can swap the Sear out to a wide/preB Sear but people generally just use a spacer. It is cheaper and avoids the need to hand fit the replacement Sear to regain Safety Lever function.
« Last Edit: January 20, 2021, 01:46:15 AM by Tok36, Reason: Spelling. »
Will work for CZ pics! (including but not limited to all CZ clones)

Offline smallbroken

  • Newbie
  • *
  • Posts: 18
Re: SP01 manual safety: Help with parts to convert to SAO
« Reply #14 on: January 20, 2021, 01:21:55 AM »
      Thank you again for such detailed response. I'm just waiting for the parts to get here. Super excited to work on it, it's intimidating to work on a new platform but I've always like working on my guns. Hoping to get the hammer in maybe 2 weeks cuz it makes the most difference in SA break. Just gotta decide if I go with cgw race hammer or the oem comp hammer...only like 10$ difference lol.