Update Sigma Trigger job

I didnt polish the sides as you did but the inside of the s that drags on the plastic. the grooves on mine were so bad you could feel them easily with your fingernail or tip of a paper clip. Spent time on that and all the grit feeling gone. took out the piggy spring and lighted sanded the groove the sear rides in. Took it out yesterday and put little over 100 rds through it. Oh man the break point is beautiful. At least you can tell where it is since you dont have the whole grit lead up.


btmlinedan said:
I took apart my trigger and cleaned up / polished all the metal internals. This helped a smidge, but felt like the main part of the "grit" was coming from where the "S" piece was rubbing against the plastic S part.

After polishing, when the springs were pressed and the S piece moved in there was no grit. also, without the trigger rear assembly installed and holding the "arm" down, the trigger pull was smooth as glass so I knew it wasn't the spring riding in the column above the actual trigger.


(sorry its hard to pick up in pictures)




Once reassembled, I noticed this was the part that was causing the gritty trigger.



After further inspection, I noticed where the laser cut this "s" piece out there were still ridges (even though it felt smooth to my finger).



I cleaned this part up (with a friends help...my dremel kit had nothing this small). once re-installed i put a drop of oil in there, and re-assembled.

since i have a non-worked sw9ve and then my allied (the one im workin on) I could put both next to eachother and pull the trigger on both.

the allied (worked) is much smoother now...still not m&p smooth, but MUCH better than before. I'm sure this will continue to be a work in progess as I learn more knowledge.
Click to expand...
 
Anyone know if LGS has started doing these again? I have a 1998 40v I am having firing pin problems with and am going to send it in. It would be nice to get the trigger work done when I send it in.
 
Thanks,
Can't make personal calls from work so I emailed him. If I don't hear back in a couple of days I will call him.
 
I think I have my trigger "all it can be". S&W factory and LSG both worked on it. Frank at LSG is "the Man". I also rolled up wet sand from 400 to 2000 grit in steps to smooth out the cutout in the sear where the pin rides up and down. Y'all can say what you want but all assembly line products can use a bit of tweeking. It's fun too! Ain't never going to be a 1911 with a 3# trigger but it can be a hi-cap self defense gun with a very smooth trigger with about a 7-8# pull. Seriously, if TSHTF is anybody gonna even realize it's a heavy trigger? It's a great pistol out the box and fun to make even better! Got one NIB for my wife back in Sept. and it is so much better than mine was NIB a year and a half ago. Let's see a S&W45VE! I'll take two!
 
The grit that everyone complains about is a moot point when the firing mechanism is in battery to fire a shot.The part that rubs the plastic is not in that position when the gun is being fired.My gun when firing has no grit, a little long and heavier than a good DA revolver pull and a crisp let-off.A little adjustment to my shooting hand movements and hold have made this pistol accurate and fairly forgiving .Academy still runs them for $299.00 {+ rebate-cash or magazines}.Leave the springs alone ,smooth it up and learn to shoot it.IF you or the gun don't seem to be improving then you might have a problem.
 
Not to switch tread direction,but KyWstJOE how are the Keys now ? Spent some time camping there in the mid 70's.Big Pine Key-lots of tiny deer,Bahia Honda on the old bridge during a meteor shower-WOW. Touristy stuff in Key West-Conch Train,Hemingway's House,Southernmost Point etc.Beautiful,interesting place then,hope it is still worth going to.
 
setxn said:
The grit that everyone complains about is a moot point when the firing mechanism is in battery to fire a shot.The part that rubs the plastic is not in that position when the gun is being fired.
Click to expand...

Right. Glad someone said this...I thought it was just me.

Those two parts don't rub when it counts.
 
setxn said:
The grit that everyone complains about is a moot point when the firing mechanism is in battery to fire a shot.The part that rubs the plastic is not in that position when the gun is being fired.My gun when firing has no grit, a little long and heavier than a good DA revolver pull and a crisp let-off.A little adjustment to my shooting hand movements and hold have made this pistol accurate and fairly forgiving .Academy still runs them for $299.00 {+ rebate-cash or magazines}.Leave the springs alone ,smooth it up and learn to shoot it.IF you or the gun don't seem to be improving then you might have a problem.
Click to expand...

Take your slide off and peer down into the sear. Pull the trigger and study the action. The sear cam lobe does in fact mate and work with the lobe in the sear housing. This action does pull the striker/firing pin back in the slide and releases the striker. Without the cam action the pistol would never fire. The striker would never move much less be released. It is a bone idle simple firing mechanism. And also why the trigger has a spongy feel and no clear release or reset point.

My gritty feel was in the sear cam lobe. But more importantly also in the slot the two sear pins run in. With one pin being the direct connect to the trigger transfer bar.

Study up on the action please.

Here are a few S&W Patent's that will show the thought and design process of our Sigmas.

http://www.freepatentsonline.com/5717156.pdf
http://www.freepatentsonline.com/5386659.pdf

Look familiar? Even the worthless pigtail spring gets prop's. :)
 
Last edited:
Look familiar? Even the worthless pigtail spring gets prop's. :)

Thanks for posting the link to those patents. With respect to the "worthless pigtail spring"-- I see that this torsion spring is used solely to insure a reset of the sear and thus when removed might result in a failure to "reset", but would not ever contribute to a light strike. Certainly I realize that a failure to reset and a light strike can have the same result: the pistol does not go bang when you pull the trigger; if the there is no reset, there's no strike at all.

I polished the parts in my sear block assembly and have removed (only) the sear spring (the torsion spring often called the pigtail spring); I have not ever experienced a failure to reset or a light striike. I admit I do not shoot the SW9VE a lot, maybe 25-50 rounds a month and I've had it about a year.
 
Rick the interesting thing about the design is it will work with no springs in it if everything else is right. Just have to make sure the trigger is pushed back. :)
 
shuper00 said:
Calling this guy he told me "I don't do this anymore"
Click to expand...

Thats weird. I e-mailed him and he sent me an e-mail back asking for my serial number and address and e-mailed me back the shipping label to send it to him. I did this last Tuesday or so. My rear sight was also off center some how and I couldn't get it back to the middle. Hopefully I get it back soon, I'm ready to go shoot it again.
 
Does he email you and let you know its on the way back? I sent mine in March 16th and haven't heard anything yet. From reading around I see it takes about a week to go and come back from his shop. I just want to know if I need to make sure someone is home to sign for it.
 
No - e-mail him and he will put an order on your ticket to e-mail you the tracking number. It might take a little longer, Frank was sick a few weeks back and I'm not sure if he is 100% yet.
 
He is great and worked on my 4046 and turn around is fast but honestly .. there is very little that can be done to the trigger pull on the sigma and it is nothing that anyone cant do themselves.

Just bought a new 9 and took me 20 minutes or so and smoothed that sucker right out. It really is that simple. Not worth losing my gun for a week or 2
MHO

Alex
 
Got mine back today. Not impressed. Trigger may be less gritty but I doubt it. Had my striker assemble replaced and now it is at 11lbs of pull. When I sent it it was nicely worn in at just under 8. So Now I am back to the drawing board. Who knows maybe 12 years from now (it's a 98) it will be back to what it was before I sent it in.
 
I got an email yesterday saying it was shipped. So I should have it tomorrow, and may make a range visit over the weekend or early next week.
I sent it in for the trigger but my rear sight was also off center to the right a little. I didn't know to move the sight so I figured I could have him look at it also. As long as one of those is better I'll be happy.
 
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