Author Topic: Correct CGW spring upgrades for guns?  (Read 707 times)

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Offline Allsmiles

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Correct CGW spring upgrades for guns?
« on: January 09, 2019, 03:26:38 PM »
Noob here, so I'm sure this is an easy question.  I have 2 CZ's that I would like to upgrade and wondering if this is what I need.

First, Shadow 2 (bone stock) and looking to put 54460 Ultra lite kit in it.  Gun is for range and not shooting comp as of now.  Also what is the advantage of the Floating Trigger Pin and or Trigger Return Spring being changed?  Normally shoot 147gr subs in 9mm if that matters?

Second, 75b Urban Gray Omega (bone stock).  Looking at either 54420 Ultra Lite kit or just SPGK1 spring kit.  Do I need the extended firing pin?  This gun will be run suppressed most of the time if that matters with 147gr subs.  Shooting with the S2, really can tell the difference in triggers and feel in these two.  Also, had several mag failures with FTF running suppressed, is there a mag upgrade spring?  Swapped and ran S2 mags in gun and no issues.


Will be getting the Tuner Pack of recoil springs with plan to use 13# in Shadow and 14# in 75b (because of suppressor).  Am I on the right track on upgrades?  I know that polishing will also help; but that most likely will be down the road.  I like to make one set of changes at a time in case there is an issue so I know where to look.
Thanks
« Last Edit: January 14, 2019, 11:45:21 AM by Allsmiles »

Offline Allsmiles

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Re: Correct CGW spring upgrades for guns?
« Reply #1 on: January 14, 2019, 11:47:23 AM »
I called CGW and they advised to get the Pro kit.  Is it that much better or just add the hammer and sear springs to above?  SRT is not a big deal since this is a range gun.

Offline Tok36

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Re: Correct CGW spring upgrades for guns?
« Reply #2 on: January 14, 2019, 03:54:03 PM »
The floating trigger pin is reusable and easy to install/uninstall unlike the factory trigger pin which is formed into place by flaring the ends of the pin. To remove the factory trigger pin a starter punch is required while the floating trigger pin can be pushed out with a punch.

As far as what parts or package you need, it is really a matter of what you want to improve and how much you want to spend. I have gone with the Pro Package in my CZs but i wanted all of the improvements.

The Reduced Power Trigger Return Spring reduces the DA and SA trigger pull weight.

The extended Firing pin along with the Reduced Power Firing Pin Spring allows you to install a hammer spring lower than 15# without limiting you primer choice. It is also part of the Short Reset Kit. The Short reset kit consists of the extended FP and the short reset Firing Pin Block Lifter.

I think that the recoil spring tuners kit is a good idea, it allows you to tune the pistol to your liking.

Will work for CZ pics! (including but not limited to all CZ clones)

Offline Allsmiles

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Re: Correct CGW spring upgrades for guns?
« Reply #3 on: January 27, 2019, 10:02:44 PM »
Well I ordered the 75700 kit (full kit) and got it installed last night.  Trigger in SA dropped 1/4# to 3.75#.  DA is lighter,  but my trigger gauge only goes to 8# and it is still over that.  I did some polishing and everything is a lot smoother.  Reset is very short and crisp and trigger break is very clean and predictable.  Everything went well until the time to reinstall the de-cocker and what a PITA it was.  Finally, it went together after about an hour of mumbling to myself.  Hopefully everything will wear in after a range trip or two.  The recoil spring is longer than the factor one and I guess it needs to "set" to lay a little flatter.

One question for the guys that have done this kit, I used the natural sear spring.  Is that the correct one or should I take it back apart and put in the white sear spring.  Not really sure what the difference is in them and trigger pull weights.

Offline 2morechains

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Re: Correct CGW spring upgrades for guns?
« Reply #4 on: January 27, 2019, 11:42:27 PM »
Installing a lighter hammer spring will have the biggest reduction to your DA trigger pull.  A 13 lb hammer spring is pretty common and will ignite just about any primer out there.  An 11.5 lb hammer spring will bring the DA down into the sub 8 lb range and IME will reliably ignite any primer if you also add the extended firing pin and reduced weight firing pin spring.  An 8 lb hammer spring is about as light as I’ve heard anybody go, but you may need to use ammo with Federal primers (soft) exclusively to avoid light strikes. 

Not too long ago I re-sprung a brand new Shadow 2.  I installed a 11 lb recoil spring, 11.5 lb hammer spring, and added the extending firing pin and reduced weight FP spring.  I also exchanged the stock trigger pin and trigger return spring with the CGW floating trigger pin and reduced weight TRS which dropped the DA trigger a tad more.  My DA is ~7.5 lbs and SA is 2.5 lbs just from those springs.  DA is very smooth with no stacking.  I’ve fired over 500 rnds of CCI and S&B primers since then with zero light strikes. 

If you do the trigger pin / TRS swap, buy the slave pin (or make one from a finish nail). 

Offline Allsmiles

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Re: Correct CGW spring upgrades for guns?
« Reply #5 on: January 28, 2019, 04:29:23 AM »
The kit came with 13# hammer, extended firing pin and reduced FPS, reduced TRS, SRT, and a new bushing and a couple of sear springs.  I also installed the 13# recoil spring to see how it does.  I shoot this gun suppressed most of the time beside a Shadow 2.  I may look into getting the 11.5# hammer spring and see how that does.  Thanks for the info on the Shadow 2 upgrades as I may also try them down the road.  Most of my ammo is either Speer or Federal 147gr subs.  I've worked on a lot of guns from 1911's, Sig P series, and revolvers.  It seems that finding the right combo just takes a little time with each platform.

 

anything