Sigma Trigger mods(Caution)

http://www.youtube.com/watch?v=No4SA6v6xjE
half way through he covers the slide and rear plate.

when removing the rear plate be carefull is a spring for the extractor that will shoot out.
I always just push the plate out of the way a few hairs then point it at the table top move it close so the spring doesnt shoot out. using a plastic bag or a box is a good idea that spring can fly a good distance may even hurt someone if it hits an eye or other soft tissue areas.
 
MrApathy ,
Piece O cake, the youtube is a must watch for novices such as myself.
Thank you Sir
 
thanks for the link also did the striker spring swap i know one thing that people who did this mod said was to watch out for hard primer rounds becuase they can/will cuase miss fire. since i reload i will be using soft primers.this is just a short term mod until i get the extra/spare parts to do your mod.
 
My Mod...
I did a mod on my 40 and 9mm, minus cutting the springs.
#1, Sear spring area, threw away the longer spring and kept the smaller one. IE: used only one spring, also threw away the tiny third tortion spring, not needed. Reassemble, dry fire a hundred times, then go to the range.

The Trigger is now very friendly for target shooting now, very very accurate, and no more finger pain. Be carefull, its now very light!
Very light pull, remembering its still a 2 stage, not like a 1911, but its now 10 times better than it was, believe me!
Forget the Dremel cutting and polishing, not needed, and you'll be very happy target shooting with this mod I discovered and tested.
Thanks for the photos above, they should help.

PS: 1000 rounds thru my 9, not one misfire, jam, nothing since the mod, haven't even cleaned it. (have added some oil every now and then)
Think I'll clean it this week now I know this weapon is indestructible.
Probably shot 200 rounds on my 40, no problems either.
 
I removed the pigtail spring from the sear housing and polished the appropriate parts.
Sear housing reinstalled in my Sigma.

However, I am having a difficult time putting the front end pieces back together:

I must have had a brain cramp because I camnnot remember the sequence for reinstalling the trigger works. If you have done this, please walk me through the steps as to what goes in 1st, 2nd 3rd, etc:

Trigger bar assembly

Loading block

Slide stop lever assembly, and does the wire arm go under the loading block or off to the side?

Trigger spring

Thanks for any help you can provide.

ps: I was sober when I did this.
 
Nice job on the trigger mods.. Only problems I forsee are not knowing exactly which springs are which.. The pictures just refer to most as "springs" instead of "striker spring", "sear spring", etc.. (And also no list of which springs your altering, that need to be ordered for spares.) Other than that the procedures look pretty straight forward!
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Just an FYI for anyone doing mods to their sigma.. I have the 9ve, and before it was a 100% gun, going bang every time.. I got the reduced power striker spring from Midway USA, and now the gun is very inconsistant.. In 30 shots I had 3 "clicks" due to light primer strikes.. All 3 bullets I reloaded and fired on the 2nd or 3rd attempt.. They all had the firing pin mark in them, but I guess it just wasnt hitting hard enough to set off the primer.. So, Im goin back to the stock spring..

Note: I was using WWB 115 gr. FMJ Target/Range ammo.. Not sure how it would fire my self defense ammo, but Im not even gonna try or worry with it.. The mod definitely made the trigger feel lighter/better, so if your gun is just a range gun, then the mod may be right for you! I may try to get a Glock spring and see how that does, as it's heavier than the reduced spring made for the Sigma (but lighter than the stock sigma spring) But for now it's back to stock for me..
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