Standard Package question

[Rittmeister]

I'm in the middle of outfitting my SP01/manual safety with the Standard Package from CGW. I've got everything figured out and am also taking the time to lightly polish a few things as I go, but I have one major question.

They provide several spring options for a few spots in the gun. I plan to use the 13# blue hammer spring instead of the lighter 11.5# spring as my gun is used for range and HD duty, so I don't want the trigger pull to be overly light.

My question is which firing pin plunger spring to use? The narrower one that fits the hole is labeled "heavy duty" and I sort of assume that it would go with the heavier hammer spring; however perhaps the lighter one would work better, but it doesn't fit into the hole on the plunger the way the former does.

Any help appreciated. I have scoured CGW's instructions but not found a reference... I could have easily missed it but I'd love input from someone who's installed the kit.

[Tok36]

 The FPB Plunger Spring is not required to be matched with the Hammer Spring. The heavier Plunger spring will add to the overall Trigger pull weight. It is a matter of preference.

The lightened Plunger Spring should fit into the hole in the Plunger. I assume that it is either a bad part or very tight to install. Having never encountered this conflict, i am interested to hear the input of other forum members on the subject.

[Rittmeister]

The FPB Plunger Spring is not required to be matched with the Hammer Spring. The heavier Plunger spring will add to the overall Trigger pull weight. It is a matter of preference.

The lightened Plunger Spring should fit into the hole in the Plunger. I assume that it is either a bad part or very tight to install. Having never encountered this conflict, i am interested to hear the input of other forum members on the subject.

Thanks for the tip on the personal preference.  I guess I'll have to try both.  The heavier spring is in there now and the trigger pull is quite a bit lighter than it was before installing the kit.

I don't think the second spring is a bad part - it matches the pictures on CGW's website.  I assume it should just fit under the plunger and be sort of enclosed in the plunger cavity, but it is weird that it doesn't fit into the hole in the plunger itself.  Unless of course it somehow works another way or goes somewhere else in the action, but I really don't think that's the case.

[azdover]

I've installed a couple of CGWs kits in my CZs and wound up with about a 3-3.5 lb SA pull - a little light for EDC in my case.  I've tried a couple of ways to increase SA trigger pull.

1. I replaced the 13 lb hammer spring with a heavier 15 & 16 lb spring.  That increased the DA weight but had negligible affect on SA.

2. Tok 36 suggested using CZC's heavy trigger return spring.  That increased the SA pull but raised it to 5-6 lbs, too much for my tastes.

3.  Earl Kreese suggested bending the TRS legs.  This worked best for me.  I put a small metal rod through the spring hole to keep the spring from deforming and used needle nose pliers to adjust the angle between the legs.  Twisting the shorter lower leg clockwise around the rod decreased the angle between the legs and increased the trigger pull weight (bottom red example) since the bottom leg is now pushing harder against the trigger.  You might even have to bend the shorter leg up above the longer one like the top spring to get the SA pull you want.  You may have to tweak it a few times but I don't think you have to worry about weakening or snapping off a leg since you're only really tightening or loosening the spring coil.  Ignore the middle spring - it's just for reference. 

I don't think it really matters whether you use the factory or CGW spring.  I can't remember which spring I used, but I was happy with the results.  I got a 4 - 4.5 lb SA pull without really affecting my DA pull weight.

Hope this helps,
Pete

[Rittmeister]

Thanks for the tip on the trigger return spring.  I'm trying to figure out which of the two firing pin block plunger springs to use, since one is too big to go into the hole  CGW themselves got back to me and told me to twist the end of the spring into the hole, so I'm going to try it soon just to see what the pull is like that way.