sigma trigger modifications

[chriskm1968]

i have done a couple of these pistols for some friends but i don't have a trigger gauge, i was wondering if any of you guys had measured them. they feel as good as a glock to me.
in fact so good they have me wanting to own one! thanks in advance.

 

[blastfact]

Mine went from 10 to 7 lbs. with my clean up. Grit all but gone. And whats left is in the striker safety. There is no clear reset and it still has it's rubber feeling.

I can get it down to 3.5 lbs with sear spring changes and keep it 100% reliable in my hands. The one thing you can not do to a Sigma and keep it 100% IMHO. Is change out the striker spring. You will get a light strike at some point!

The one thing to remember concerning current Sigma trigger mods is the shooter and the numb reset. It was designed as a full trigger stroke reset. It is the nature of the cam style sear. Just look at the sear and housing. It does not lie.

 

[speedshooter]

I have mine down to 6lbs, probably through shooting a lot after the mods. Didnt change any springs although, i did install a lighter striker spring. Had a few FTF's with it and opted to install the old one and has always did its job since.(didnt really notice a big diff in the pull)Nice and smooth all the way through to the "BANG".Our neighbor just bought a 9mm glock, looked at my 40ve and all he said was "oops".

 

[chriskm1968]

i changed left out the pigtail and changed the outer cage spring and do a polish on the rough parts. they feel really good. i hear the stiker spring replacement really makes them sweet!

 

[bitstream]

I have mine down to 6lbs, probably through shooting a lot after the mods. Didnt change any springs although, i did install a lighter striker spring. Had a few FTF's with it and opted to install the old one and has always did its job since.(didnt really notice a big diff in the pull)Nice and smooth all the way through to the "BANG".Our neighbor just bought a 9mm glock, looked at my 40ve and all he said was "oops".

I was thinking about just doing the polish job on the sear assembly as people here have suggested, will that work safely? I don't want to remove/change springs or get too aggressive, just smooth and polish.

 

[KyWstJoe]

I was thinking about just doing the polish job on the sear assembly as people here have suggested, will that work safely? I don't want to remove/change springs or get too aggressive, just smooth and polish.

That my friend will do the trick. Remember, just polish out the machineing marks. I found the slot in the sear where the pin rides up and down the place most difficult to clean up but accounted for the most grit feel in mine. I rolled 1000 grit paper around a paper clip and lightly sanded up and down until it was good. Took some time but I'm now happy with the trigger. Watch out for runaway springs!