trigger job

[psycho91]

What two springs do y'all take out, and is it worth it to put in a wolf 3.5 spring

 

[SW Str8-Shooter]

you take out the pigtail spring and the larger (outer) sear block spring all located in the sear housing block assembly. I personally would not change the striker spring to the wolf spring if that is what you are referring to. There is a video of this mod being demonstrated on you tube labeled Sigma Trigger Fix / Mod DIY walk through for beginners by GunsmithUSA. There are others on there but this is the best video and Mod on there in my opinion. Hope this helps.

 

[psycho91]

OK this is my first pistol so I have no clue what the sear block is, and doesn't the pigtail spring reset the sear, and why wouldn't you change to the wolf spring

 

[mlk18]

The you tube video shows how to do it in great detail. It's worth watching. The pigtail spring does help with reset, but it is only necessary when using +P+ ammunition. Standard pressure ammo cycles and resets just fine without out. The problem with the lighter striker spring is reliable ignition.

 

[vector16]

its your first gun, leave it alone. learn how to use the gun for your own safety and ours. Once you get to the point where you are hitting a fly in the eye, come back and talk to us about this.

 

[mlk18]

I completely disagree. The best part of getting a new gun is ripping it completely apart and monkeying with it.

 

[blkpitbull]

You should definately watch the trigger mod video by fabiocrow on YouTube.....

 

[MrApathy]

if you go with the wolf striker spring I recommend you use Federal ammo as they have the most reliable primers for it. avoid cci as they are have hard primers.
may work fine at first with all ammo but usually gives light strikes after while on hard primers.

 

[psycho91]

Yeah anything I can mod or tinker with I can't help myself but to rip into it

 

[SW Str8-Shooter]

I specified the video that explains and shows you exatly how to do the mod and I believe this is the best mod for the gun because it does not instruct you to put a pen spring in to replace the outer sear spring. I have done this mod to my gun and have had no issues with sear resetting or any other type of failure in over 1000 rounds, so I know it works and with all different types of ammo as well. I have several friends as well that have sigmas and a couple of them tried the pen spring in their guns and had issues with sear reset with the hotter ammo and have since taken the pen spring out and that corrected the problem. The pen spring doesn't work because the gauge of the wire used to make the spring is much smaller in diameter and when under pressure the inner sear spring becomes intertwined with the smaller wire of the pen spring which causes the sear reset failure in my opinion, not the pigtail spring being absent. I believe the only function of that pigtail spring is to increase the trigger pull, which was at the request of law enforcement at the time due to the fact that they were just starting to make the switch to semi autos from revolvers with enormous trigger pull and they were afraid of unintentional missfires if the pull was too light. If you take the slide off you can work the trigger and get an idea of how trigger, trigger arm and sear assembly work. I also don't care for the lighter striker spring because a lighter strike may equal no bang when your life depends on it. This is all my opinion based on my experiences and thats it, I hope it helps.

 

[psycho91]

I agree with your no bang statement

 

[bc9]

if you go with the wolf striker spring I recommend you use Federal ammo as they have the most reliable primers for it. avoid cci as they are have hard primers.
may work fine at first with all ammo but usually gives light strikes after while on hard primers.

Any other suggestions for ammo with "good" primers or with "bad" primers? I'd like to do the Wolff striker spring, but don't know enough about the various brands of ammo to know which one(s) I could count on.

Thanx

 

[HalfStack]

Does the striker have another spring in front of it?

 

[J Rich]

Well goes my 2 cents.

Don't take this personally!!!!

This is your first gun, and seeing as you don't know what the sear block is. I'm going to say you have done little to no research, and haven't had the gun long at all. LEAVE IT ALONE!! Get some trigger time, some carry time (if applicable) and be familiar with the weapon before any modifications.


As for the striker springs. I have researched and read reviews on the subject. I would not use any aftermarket striker spring on the market today in a sigma that I'm trusting my life with. I would however consider using a lighter striker spring in competition use after lots of testing. Not just the striker but many other variables which competition shooting is something I'm exploring at this time.

I'm not a gunsmith or a comp shooter at this time. These are just a few of my many opinions.

 

[MrApathy]

3 main primer producers for reloading market are CCI,Winchester and Federal.
CCI are the toughest winchester second though winchester a few years back made them
slightly easier I havent tested them much in regards to sigma lightened striker reliability but concensus was winchester with lightened striker spring wouldnt work 100% reliable.
Federal is easiest to set off period. are some other manufactures of primers magtech,wolf and maybe one or two others I have no experience with.

personally I would only use the various mods people here suggest for competition that includes using reduced striker spring. for defense I want a gun that can set off the hardest primer reliably to have a pistol that is not handicapped to specific primer or ammo manufacture which would limit options should that ammo not be available for whatever reason. without reliably useable ammo the gun is just a paper weight.

but with all the mods available its possible to get the sigma trigger down to #4-3.5 pounds for competition.

 

[psycho91]

I took the pigtail spring out messing with it this morning and I couldn't dry fire it after that, is that because I took only one spring out

 

[HalfStack]

Maybe you need to rack the slide first (in case you didn't). I lost the pigtail spring on mine and today I went to the range. I shot 31 Champs and 20 PDX1 +Ps and all went well.

 

[psycho91]

It would not dry fire at all, buy all I did was take the pigtail spring out

 

[SW Str8-Shooter]

You did something wrong, because removing the pigtail spring will not cause the gun to fail to dry fire or live fire for that matter.

 

[J Rich]

I wound why a few people here told you to leave it alone?