I want to start doing some very simple mods to my Shadow 1. To begin I'd like to reduce the weight of the double action pull. What is the simplest way to achieve this? Any other simple mods you can recommend are also welcome. Keep in mind I want to stay IPSC production legal. Thanks.
Easiest way to reduce DA pull in Shadow 1?
- Thread starter mcwalther
- Start date
What weight for the hammer spring? If I change the hammer spring are there other springs that need to be changed in tandem?
Purchase Wolf recoil and main springs. The factory weight is around 17 / 20 lbs so begin at 15 and work your way down. You must be aware that as you get down to 11lbs you will have factory ammo issues. Reloading becomes paramount when you reduce the spring tension.
A 13# spring should help bring down the DA pull to around 7.5# and you can most likely get away with the factory firing pin spring and firing pin. If you go down below 13#, you'll need a reduced power firing pin spring and possibly an extended firing pin. A polish job on the contact points will reduce the pull another 1/4# to 1/2#. A thing to note, when you reduce the DA, the SA will also lighten up. When you get the DA to 6.5# to 7#, your SA might be sub 2#.
hatman1793
CGN Ultra frequent flyer
“What is the simplest way to achieve this.”
Squeezing the trigger double action compresses the factory hammer spring. I believe the factory hammer spring is 43 or 44 coils.
Count the coils in your spring & cut 10% off. 44 coils X 10 % is 4 coils. Instant trigger reduction, but be aware that while my WIN SPP’s will still be set off with the coil reduction, harder primers like CCI might not. Or might. You asked for the simplest way.....
Squeezing the trigger double action compresses the factory hammer spring. I believe the factory hammer spring is 43 or 44 coils.
Count the coils in your spring & cut 10% off. 44 coils X 10 % is 4 coils. Instant trigger reduction, but be aware that while my WIN SPP’s will still be set off with the coil reduction, harder primers like CCI might not. Or might. You asked for the simplest way.....
Thanks. Exactly the kind of info I'm looking for.
Easiest way? Go to doubletapsports and ordered the CGW kit listed below for $86. Best money you will spend on this pistol. 11.5 mainspring will have 100% ignition with CCI 500s with zero polishing.
8.5 main will require some tuning, and is only compatible with Federal primers.
Cajun Gun Works Ultra-Lite Firing Pin Kit Shadow / Shadow 2 / 85C
Used for range, the Cajun Gun Works Ultra-Lite Pin Kit upgrades your CZ Shadow/2.
The kit includes a 11.5lb hammer spring, an 8.5lb Hammer Spring , S-7 tool steel firing pin w/spring.
Fits: CZ Shadow/2/85C, and any CZ models that DO NOT USE A FIRING PIN BLOCK SAFETY
Will not fit: CZ MODEL THAT USES A FIRING PIN BLOCK SAFETY (ex.CZ 75 Pre-B) If in doubt, please consult yur gun manual.
Note: Made for COMPETITION USE, if in doubt, please consult your gunsmith
Manufacturer Model #: 54460
8.5 main will require some tuning, and is only compatible with Federal primers.
Cajun Gun Works Ultra-Lite Firing Pin Kit Shadow / Shadow 2 / 85C
Used for range, the Cajun Gun Works Ultra-Lite Pin Kit upgrades your CZ Shadow/2.
The kit includes a 11.5lb hammer spring, an 8.5lb Hammer Spring , S-7 tool steel firing pin w/spring.
Fits: CZ Shadow/2/85C, and any CZ models that DO NOT USE A FIRING PIN BLOCK SAFETY
Will not fit: CZ MODEL THAT USES A FIRING PIN BLOCK SAFETY (ex.CZ 75 Pre-B) If in doubt, please consult yur gun manual.
Note: Made for COMPETITION USE, if in doubt, please consult your gunsmith
Manufacturer Model #: 54460
Is this IPSC PRODUCTION legal? Aftermarket parts vs CZ made? OP indicated Production legal...
To OP: 11lb or 12lb springs worked for me, in some cases Extended firing pin was needed for reliable 100% ignition with CCI primers.
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I have installed the 13# mainspring and cut 2 coils from it. Trigger breaks at about 2.5 to 2.75 pounds.
I'd recommend cutting just one full coil at first- live with that a while and see if you like it. You can always cut another coil off, but I wouldn't cut any more- you get a very light trigger, but it's kinda mushy.
Cleaner, crisper break. Slightly reduced trigger pull weight in SA. Add a pre-B disco and your reset will shorten up nicely.
