The Original CZ Forum

GENERAL => Cajun Gun Works => Topic started by: Dynachuck on June 12, 2020, 12:48:50 AM

Title: DAO Sp-01 am I crazy
Post by: Dynachuck on June 12, 2020, 12:48:50 AM
I have an sp-01 (my favorite pistol) with the defensive carry kit from Cajun gw.The DA is so good with the short reset kit, I've been considering getting a second race hammer and modding it to make it DAO.  Anyone tried it?  Am I crazy? Good idea/Bad idea?  I typically use it for tactical holster draw stroke practice on metal targets. The 3.8lb single action second shot is nice for trying to impress someone at the indoor range but I find it to be  a distraction for draw stroke training. I also use my ruger SP-101 revolver as DAO, and like it. (That's where I got the idea). I've read that you just need to grind the single action spur off of the hammer.  I would use a extra hammer so I could change it back.
Thoughts?
Title: Re: DAO Sp-01 am I crazy
Post by: anonymouscuban on June 12, 2020, 12:53:34 AM
Why not. It's not permanent.

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Title: Re: DAO Sp-01 am I crazy
Post by: Dynachuck on June 12, 2020, 06:49:07 PM
That's my first thought but I'm not sure I can trust that it would work right, I would hate to turn it into a full auto by accident or damage the gun.
Title: Re: DAO Sp-01 am I crazy
Post by: SoCal on June 18, 2020, 01:02:17 PM
Just load 2-3 rounds at a time, then if it is full auto it won't be running thru 17 rounds.  If it works start increasing the number of rounds until you reach full capacity.
Title: Re: DAO Sp-01 am I crazy
Post by: Dynachuck on June 18, 2020, 11:38:43 PM
Sounds like a really good plan, I’ll probably pick up another race hammer soon and see how it works.
Title: Re: DAO Sp-01 am I crazy
Post by: tdogg on June 19, 2020, 12:49:29 AM
Don't waste your money on a race hammer to modify it for DAO.  Just purchase a DAO hammer (if you can find one, I'd call CZ USA) or another stock hammer to modify.  You will grind off the hammer hooks and that is what your paying for with a race hammer.

Cheers,
Toby

Title: Re: DAO Sp-01 am I crazy
Post by: Dynachuck on June 23, 2020, 10:26:57 PM
Thanks, sounds like good advice. But I want to make sure I don’t  risk loosing the DA feel of the race hammer and have it feel like the stock setup.
Title: Re: DAO Sp-01 am I crazy
Post by: tdogg on June 24, 2020, 12:16:48 AM
The hammer has very little to do with the da feel.   Polishing the trigger bar, main spring strut, main spring weight, and installing a fitted disconnector effect the da feel. 

You literally are going to grind off the point of a race hammer (and the reason you spend $ for them) to convert it to dao.

Cheers,
Toby

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Title: Re: DAO Sp-01 am I crazy
Post by: Dynachuck on June 26, 2020, 10:28:53 PM
Yeah I’m not sure what components made the difference but I installed the defensive carry package which includes the race hammer. My friends SP01 is stock, his DA is not what I’m looking for, it’s longer , harder and less predictable break, could that be just the springs and not the pin pattern on the hammer?
Title: Re: DAO Sp-01 am I crazy
Post by: tdogg on June 27, 2020, 12:23:13 AM
The pin pattern is the same.

I'm confused, which gun doesn't have a good DA?  Like I said, polishing, springs, and disconnector.  If you have short fingers a reach reduction kit can help with trigger length of pull.

Cheers,
Toby
Title: Re: DAO Sp-01 am I crazy
Post by: Earl Keese on June 27, 2020, 10:02:46 AM
Just grind the hooks off of your old oem hammer and try it out.
Title: Re: DAO Sp-01 am I crazy
Post by: Tok36 on June 27, 2020, 03:15:52 PM
   If this is what it looks like you might be able to use one of these. I am tempted to pick one up to tinker with but i have no real interest in DAO. I agree with other forum members point that modifying a factory hammer would be the cheapest way to go.


Hammer Assembly, Spurless, Used Factory Original
https://www.gunpartscorp.com/products/1508390B
Title: Re: DAO Sp-01 am I crazy
Post by: Bossgobbler on June 27, 2020, 04:17:04 PM
Well, let see.  Hammer with no SA hammer hooks. How's that going to work? Pull the trigger in DA, the hammer falls, hits firing pin, cartridge fires, slide recoils, and hammer follows slide hitting the firing pin.  No that's not a good idea!
Title: Re: DAO Sp-01 am I crazy
Post by: Tok36 on June 27, 2020, 04:42:11 PM
Well, let see.  Hammer with no SA hammer hooks. How's that going to work? Pull the trigger in DA, the hammer falls, hits firing pin, cartridge fires, slide recoils, and hammer follows slide hitting the firing pin.  No that's not a good idea!

I hear ya Bossgobbler, when i first learned that in a DAO set up the hammer follows the slide forward it made me nervous, but apparently this is how the CZ factory DAO CZ75 functions.
Title: Re: DAO Sp-01 am I crazy
Post by: Earl Keese on June 27, 2020, 06:41:55 PM
Well, let see.  Hammer with no SA hammer hooks. How's that going to work? Pull the trigger in DA, the hammer falls, hits firing pin, cartridge fires, slide recoils, and hammer follows slide hitting the firing pin.  No that's not a good idea!

I hear ya Bossgobbler, when i first learned that in a DAO set up the hammer follows the slide forward it made me nervous, but apparently this is how the CZ factory DAO CZ75 functions.
Does the oem DAO retain the half cock hook?
Title: Re: DAO Sp-01 am I crazy
Post by: Tok36 on June 28, 2020, 01:09:12 AM
Does the oem DAO retain the half cock hook?

   I have not had the opportunity to examine a 75 DAO myself, so i can not be 100%. My assumption is that both the half cock and full cock hammer hooks are not present. There are two things that fuel my assumption here.

   One is that when the slide cycles the Sear is reset. This means the the hammer would stop at the half cock as it followed the slide forward after firing. Now this would not really cause a problem, it would just shorten the DA pull for the next shot, but if you look at pictures of the 75 DAO it always looks like the hammer is in the fully down position. If a DAO naturally stopped at the half cock you would figure that you would see it in some of the pictures. Two is this picture i found of the DAO hammer for the CZ P Series. The DAO hammer pictured has no half cock hammer hook.

Hammer Complete, New Factory Original (P-07/P-09 DAO)
https://www.gunpartscorp.com/products/646030

There are at least a few 75 DAO owners here on the forums, maybe they will give us a solid answer.

Title: Re: DAO Sp-01 am I crazy
Post by: Earl Keese on June 28, 2020, 06:51:34 AM
Does the oem DAO retain the half cock hook?

   I have not had the opportunity to examine a 75 DAO myself, so i can not be 100%. My assumption is that both the half cock and full cock hammer hooks are not present. There are two things that fuel my assumption here.

   One is that when the slide cycles the Sear is reset. This means the the hammer would stop at the half cock as it followed the slide forward after firing. Now this would not really cause a problem, it would just shorten the DA pull for the next shot, but if you look at pictures of the 75 DAO it always looks like the hammer is in the fully down position. If a DAO naturally stopped at the half cock you would figure that you would see it in some of the pictures. Two is this picture i found of the DAO hammer for the CZ P Series. The DAO hammer pictured has no half cock hammer hook.

Hammer Complete, New Factory Original (P-07/P-09 DAO)
https://www.gunpartscorp.com/products/646030

There are at least a few 75 DAO owners here on the forums, maybe they will give us a solid answer.
I agree about the pic, but Bossgobbler's comment got me thinking about hammer follow. I've never considered this conversion since DAO doesn't interest me at all.