Hello,
I really do not like to jump in and ask a silly question but here goes:

I just purchased a 40VE, I have completely gone through the 40VE doing everything to smooth out the trigger assembly, sear, slide etc, like I do so often with my other firearms.

Now the problem is my S&W takedown manual does not show a part that I am having problems putting back. It is a thin steel block with a angle on one side. It has a letter stamped into it just like the rest of the firearm parts of the Sigma.

I take photographs of all of the parts of a firearm when I dissemble one so I know where it goes back, however this part fell from the Sigma when I was taking it apart and I am stumped as to where it goes back into the firearm. I have studied all of my photographs before I took the firearm apart and I still cannot see where it goes. I have experience in taking apart firearms so I am not a simpleton.

Does anyone know where this goes so I put it back and make a note of it??

Thanks for any imput and I am truly sorry about asking this question from a first time poster.

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If it would help, the part came from the area of the trigger.

Wow I stumped everyone here!

I think it's the takedown bar. It's used to takedown the slide. Goes right above the trigger

Never had any parts "fall out"

Better photos with something in them for scale might help....

This might help-

Schematic for Smith & Wesson® Sigma SW40V - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools - BROWNELLS

I do not think that came off your sigma. I think you may have been taking apart another gun, that part fell out of it, you put the other gun back together w/o that piece. Took your sigma apart, and that peice was just on the ground so you think it is a sigma part, its not.

Before I take a weapon apart, I clean my bench, the floor, and I keep all my tools in the tool chest above the bench. Each part removed is placed in a parts holder. I only work over the bench, not near the floor and that is where the part landed when it fell out of the trigger area.

The steel part has a special letter stamp just identical to the other parts of the Sigma so I know it belongs with the Sigma.

This part looks identical to the slide release however the slide release has been accounted for, and this does not have a notch, or groove in it..

My Smith & Wesson manuals are really in depth, however this is brand new and it may have a new part installed after this take down manual was produced.

I have taken about 15 weapons apart in my firearms collection (I still have more to service) and I have photographs of each part being removed from start to finish. I am really careful not to make a mistake. I was following the take down manual with each of the parts I removed from the trigger area when this piece fell out and that was the one not in the take down manual.

Now I will have to admit that it was a surprise to see something that was not on the take down manual, fall out of the trigger area after I went over and over the take down procedure before I started. I looked over all my photographs to see if it was in them and I cannot find the part anywhere.

Is their a person who knows where this part fits in the trigger area of my Sigma?

Forgive the Newbie, and his ignorance, but, looking at mine, without a full teardown, I see this (see pics). I guess it's technically near the trigger, but it's in the slide.

Hope this helps.

Scott

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Just looked at mine think it goes under the spring above the trigger.

You are pointing to the Extractor.

Which spring?

Can you post a photo for me???

Thanks

It might help others to identify if you were able to measure it and post sizes. Pictures are hard to determine without a reference. Photograph it lying on ruler, maybe, or on a lighter background beside a ruler.

Flash

Photo01112153 (2).jpg
I added some more photographs, the steel block has:
beveled edges on each side
H stamped in the block
3/4" wide
1/4" tall
Photo01112153_1.jpg
Any help would be excellent.
Thanks

I'm with vector16, not a part of a Sigma. If it's not a part from another of your guns, then it's something that slipped in at the factory. Email S&W with a photo, as see what they say.

Scott,
just so you know. The part you are refering to is the extractor. This is the thing that pulls the empty shell casing out of the barrel when you fire the gun.

HEY 1480,
its one of your rails that the slide moves on. you are going to have to send the gun back to S&W

Thanks for everyones imput, I am sure it fell from the firearm, I am positive it is a S&W part since it is stamped like the rest of the trigger parts.

I was hoping to have a Sigma expert give me some imput as to where it goes, I am well educated on firearms and take all the steps necessary not to have this problem occure, however these things happen and I am not going to leave it alone until I figure out where it goes.

As for all of the guesses thaks for trying.

Sigma takedown


Just found this link, the photos show no part like mine, I have the feeling it is either new, or something S&W dropped in by mistake. I will find out on Sunday when I go to the range, I am sure it will not be a problem, everything works fine with the snap caps.

Trigger Job finished



I just finished the trigger assembly on my Sigma. After going and extracting all of the Sigma information on this forum I was able to remove the play on the trigger pull, remove the sandpaper trigger pull, make the trigger pull smooth as glass.

I have kept everything S&W minus the:
1. pig spring
2. felt wad in the trigger spring.

Now this is what I have done:

Every part has been cleaned by hand, I was real careful not to over do anything except remove crud that was left over from S&G manufacturing like the stamped parts had sharp edges on several parts. I think every handgun needs to be taken down and serviced before it is taken out to a range. If you go out to a range with a out of the box firearm it will be a let down. I have serviced most of my weapons from 1899-2011 and every one of them have been cleaned by hand, not using any Dremel tools or the likes, you can get more done when you feel the part with your hand during the cleaning stage and you know when to quit. The sear assembly took about three hours to full opperate without any sandpaper feel. The trigger assembly took about three hours also to function 100% better. The slide assembly took about four hours to work on getting everything cleaned, polished, where all the moving parts are working smoothly. All of the parts were checked, assembled, taken apart, worked on some more, and you get the picture.

I have several back up trigger springs (among many other extra service 40SE parts) if this one breaks since I removed the felt wad so I am not really out of anything except a couple of bucks. I talked to Wolf about the felt wad and they told me it was not really needed, the spring needs to be replaced every five thousand rounds and that is fine with me. I have read both sides of the forum when it comes to the felt wad and for me if it works without any problems than it will be left out. As I said I have several trigger springs so if it breaks it is not a real problem.

All of the springs are factory and none have been altered in any way. I just cleaned the area that the spring fits in or on so it will not drag when being compressed.

I also pinned the trigger, which may cause someone to go a scream "safety issue". I am in no way convinced the trigger is really in need of a safety that causes 1/8" pull before the trigger will move. If you keep your finger out of the trigger guard until it needs to be fired than it will not fire even if you drop it.

You can remove trigger travel from the trigger bar, however if you over do it you will not be able to cock the striker when you pull the slide back. I used temporary shims in the trigger bar to figure how much play you can remove before it will not fire and using a micrometer I was able to figure out what I needed to adjust the bar so it will not make contact with the pin that moves the sear assembly, however it would be resting next to it. You have to take into account for all of the trigger bar movement and what it contacts so it does no create a issue for firing the weapon.

Also, since the firing pin can break with dry firing, you can put a snap cap into the chamber and remove the slide. If you think this is a safety issue remember snap caps are red and cannot be mistaken for live rounds. I have snap caps for all of my weapons, so when I am working on them they will not have a problem if I use a snap cap other than dry firing a weapon which in my opinon is not good for the weapon.

Again thanks everyone

I was interested in reading this post, I thought some of it was just wrong, But was willing to set that aside for newbie terminology problems. All that aside up into this last part. I know from experience this is impossible to accomplish. there cannot be a round in the chamber (snap cap) and be able to remove the slide. See, the end of the round (snap cap) is between the extractor and the FP area which makes it impossible to remove the slide.
Great mystery part though. Next time don’t go so far.

I remove my slide all the time with the snap cap in place to protect the striker.

The terminology I use is standard in the gun manuals. I am not new, I have been working on firearms a long time always without a problem except for this new Sigma that I got. All of the takedowns I do are photographed, and documented and catalogued.

This is about learning and most of the time I keep my education to myself, however I was trying to be helpful so thanks to you I will take a back seat and watch as usual.

I took the 49VE to the range today and it had not one problem, the trigger was like glass, the pull was reasonable, every round fired ejected without any issues, the range master thought it was a total custom job until I told him it is all S&W and it was only missing the piggie spring and the felt wad.

So, I must be damn good in the gunsmithing department to acheave a smoth as glass trigger from a 40VE, using only factory S&W parts, and little modifications, which is touted as a lousy trigger from everyone.