Sigma trigger job... Good or bad

bimmerland

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I have read a multitude of posts regarding lightening the trigger on the SW9VE. I plan to use the gun as an all purpose gun so I was wondering if anybody has attempted the trigger job and has there been any reliabilty issues after the modification. My take is if it ain't broke don't fix it. If any of these springs are not necessary then why were they there in the first place? I can't see S&W adding parts that are not necessary since that does add cost to manufacturing. I have a Sig 250C with a long trigger pull and have gotten used to it. Kind of makes me slow down and think about each shot for better accuracy so the Sigma should not be that different. I am always looking for any constructive suggestions regarding the Sigma as I would like to see if there is anything to lighten the trigger pull so my finger is not shot after 200 rounds. Thanks in advance for any and all suggestions
 
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I Have done it and to me it really dont make that big of a change...but if you do it and need to send the gun back to S&W for any work you will NOT get it done "gun has been modded" no warranty...IMO i would not do it......scott
 
Mine is a carry gun so I haven't worked on it. Shooting it or snap capping smooths out the internals anyhow.

You might want to consider running a stone on some of the internals to buff the rough edges. I personally have no desire to change springs or etc.
 
If any of these springs are not necessary then why were they there in the first place?
Truth!

I am always looking for any constructive suggestions ...so my finger is not shot after 200 rounds.
Well, lets see..

Dry fire every day to build up that trigger finger.

Buy a double-action .22 revolver and shoot 500 rounds for every 200 out of the Sigma.
 
I have done a trigger job on my 9ve and it makes a world of difference! Main thing is to polish the sear block ramp, the slot in the sear where the trigger linkage pin goes in, the ramp and slot are rediculously ruff from the factory. I believe the only reason these issue's aren't addressed from the factory is the cost. Also the plastic block with the ramp that the sear rides against has a molding line that also needs to be polished with some 600 & 1000 grit emery cloth. I have tried it with the pig tail spring installed and removed and haven't had any functionality issues after 200 rounds, I will be putting atleast another 200rds through it this weekend to try out the new front sight and I will report back if I have any function issues.
 
@daparrothead - Since I am having issues with both mags I am sending the gun back for repair. The CS rep said they would do the trigger job for me free of charge. Thanks for the help
 
I have done a trigger job on my 9ve and it makes a world of difference! Main thing is to polish the sear block ramp, the slot in the sear where the trigger linkage pin goes in, the ramp and slot are rediculously ruff from the factory. I believe the only reason these issue's aren't addressed from the factory is the cost. Also the plastic block with the ramp that the sear rides against has a molding line that also needs to be polished with some 600 & 1000 grit emery cloth. I have tried it with the pig tail spring installed and removed and haven't had any functionality issues after 200 rounds, I will be putting atleast another 200rds through it this weekend to try out the new front sight and I will report back if I have any function issues.

They are the things that need work. Won't lighten trigger pull but will smooth it out. I actually bent the pigtail spring so it didn't load until near the break.
I see you are sending it to S&W and that is the way to go. I have 2 of them and both run perfect with the work I have done on them.
 
Well, if you don't own one yet, you might consider the 9mm SD, it has a smoother, lighter trigger pull; my opinion, limited sample, and comes with a tritium front sight. Runs about 50 dollars more, depending on sales.
Geoff
Whose wife likes the relatively heavy trigger pull on her Sigma 9VE
 
SW9VE Trigger Fix

Does anyone know if S&W is still offering to adjust the trigger pull for free (so as to not void the warranty)?? I read a few posts from about 3 yrs ago that they would pay for the shipping to/from with about a 2 day turnaround.
 
Does anyone know if S&W is still offering to adjust the trigger pull for free (so as to not void the warranty)?? I read a few posts from about 3 yrs ago that they would pay for the shipping to/from with about a 2 day turnaround.

What you do is call S&W and tell them your trigger has a very "gritty" feeling.They will send you a FEDX shipping label.You box the pistol and call FEDX to come pick it up.Turn around time is about 2-3 weeks.S&W sends it back to you with a detail repair letter enclosed.
 
All springs are needed all you have to do is read the patent info to understand that or you can listen to some guy online and randomly take out springs....happy shooting

http://smith-wessonforum.com/smith-...698-trigger-replacment-9ve.html#post136104921


Though I dont see what people are complaining about, the Sigma trigger really isnt that hard. Anyone pulled the trigger on the early Keltec P11s now that was a very heavy trigger with an extreme length of pull
 
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I like the part about the detail letter.

I've polished and fiddled with the trigger works and have made the trigger pull smoothly about as easy as a revolver. It can't go back to the factory as is but I saved the parts.
 
There is good advice above. I didn't have that and worked out my own changes. Just remove the pigtail and the outer sear spring. Save the parts, so before it ever goes back those can be reinstalled and the gun is original again. All that polishing and smoothing helps too. Smoothing that slot in the sear was the hardest thing I needed to do.

I believe the heavy pull is to appease the Boston lawyers.
 
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i did the trigger job along with a polishing. i took off the pigtail spring and changed out the outer spring with a skillcraft ink pen spring cut to the same length. kept the inner spring. this took the trigger down to about 6 pounds and the gritty feeling is gone. shot 400 rounds to test and did not have any problems. so it looks like the trigger job worked for me.
 
I have heard both good and bad things about a trigger mod. I have both the 9VE and the 40VE and after shooting a few hundred rounds thru mine, they have both smoothed out and are great pistols. As some mentioned earlier in the thread, any mods to the trigger done by anyone other than an authorized smith gunsmith or by the company itself will void the wananty completely. To me it is not worth the hassle. The pistol does exactly what it was meant to do, it just works and keeps on working....
 
i did the trigger job along with a polishing. i took off the pigtail spring and changed out the outer spring with a skillcraft ink pen spring cut to the same length. kept the inner spring. this took the trigger down to about 6 pounds and the gritty feeling is gone. shot 400 rounds to test and did not have any problems. so it looks like the trigger job worked for me.

Here is my problem the felt weight is not the trigger it is the striker here is a test to show that, with empty chamber pull trigger and take note of weight. Now take the slide off and pull the trigger and notice the weight.

The truth is simple the striker spring is heavier than any of the springs in the sear. You can remove every last spring in the sear block and still be left with a heave trigger. Lets say the weight on the striker spring is 10lbs and the springs in the sear equal 8lbs. If you drop the springs in the sear from 8lbs to 5lbs you are still left with the 10lb striker spring.

You can improve the feeling of grit in the trigger by polishing the sear you could also sand the sear down so it breaks early which would reduce the felt weight as well.

The springs you are removing have more to do with trigger reset, the bottom line is if you want a light trigger you can replace the striker spring and risk light strikes or buy a true SA pistol.
 
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I guess everybody has a opinion on whether to do a trigger job on the Sigma. My take is leave it alone. S&W design the Sigma for a reason. The longer and heavier trigger pull is design to make the Sigma safer and unlikely for a person to have a accident. The Sigma is just like a double action only revolver. I feel this type of semi-auto is the safest for the entry to average shooter. If a person does not like the trigger S&W will make the trigger smoother. But the Sigma will never be a 1911.
I say leave the Sigma alone. If you don't like the Sigma because of the trigger, sell it and find another gun.
Howard
 
I am not smarter than the gun designers. My gun had a "gritty" feel to it new, but the more I fired it, the less it was gritty, and the less I noticed it. I used my Sigma in IDPA as well on multiple occasions. There was always a guy there that had a 1911 with FTE or stove piping. My SW40VE was flawless.

Anyway, I shoot my guns the way they come from the factory.
 
BINGO. If I decide to change my trigger action I will ask S&W to take the new parts and install them for me. I've heard someone do that, and I suppose it was true. I just hate the idea of messin' with something and voiding the warranty, and knowing S&W's service, even though I may be gun-less for a few weeks, I just like knowing if down the road something breaks, they will still fix it. But I am not a gunsmith, not even close..I won't break it down any further than field-strip.
 
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