Sigma 40 won't eject without mag

Texaswildman

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My 40 will not eject (slide will not move back) an unspent chambered round without the magazine. What am I doing wrong?
 
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Sounds like you put it back together wrong. after you did your trigger job did you put thye trigger assembly in backwards?
Take the gun apart, clean it, lube everything again and put it back together. Make sure the take down pin at the very rear of the gun is in place.
 
Yeah, I was afraid someone might say that. I haven't taken the gun down, it's new.
 
First I woulnd't cycle any live ammo in a gun you suspect to be not working 100%. The mag should have zero influence on the action of the slide besides locking the slide back on an empty mag
 
Yeah, I was afraid someone might say that. I haven't taken the gun down, it's new.

Well if the gun is new and you have not cleaned it from the factory yet, you should not even know what its like to have ammo in it yet. Take the gun apart and clean it for god's sake. Lube the gun and put it back together. if the problem is still happening, take it apart again, take some pics and repost w/ pics.
Its very important to get the factory grease off the gun before loading it. there is ALOT of it on there for protection when shipping. The factory may have accidently put something in the gun, like a wedding ring. Its happened.
 
my sigma .40 is doing the same thing. The slide does not go back if the mag is not in it. I just put about 75 rounds through it at the range. It shoots nut accurate!. So am I missing something too?
 
my sigma .40 is doing the same thing. The slide does not go back if the mag is not in it. I just put about 75 rounds through it at the range. It shoots nut accurate!. So am I missing something too?

You guys need to call s&w about that issue. I have never had a problem with mine. It seems like these are pretty new guns and they might be out of the same batch. See what Smith and Wesson has to say about it. They will brobably replace your firearms and give you a couple more mags for the trouble. It just really sounds like a defect.
 
I juust looked at a coupole other sites about this. Its a bad trigger bar issue. You need the call customer service when you get a chance and get instructions of how to send it in. You will get new pistols.
 
I've been shooting for 45+ years and have never fired a handgun without the magazine in place. I am baffled that this many people have. Does it work correctly with the magazine in? I may have a few that do this, but have never seen a need or reason to test them.
 
I've been shooting for 45+ years and have never fired a handgun without the magazine in place. I am baffled that this many people have. Does it work correctly with the magazine in? I may have a few that do this, but have never seen a need or reason to test them.

+1 on what MBNATT said except for 45years part. I"ve only been shooting about 35years
 
I've been shooting for 45+ years and have never fired a handgun without the magazine in place. I am baffled that this many people have. Does it work correctly with the magazine in? I may have a few that do this, but have never seen a need or reason to test them.

You've been shooting for 45 years and you've never racked your side without the mag in place? You have never dry fired a weapon? When you put your gun together after cleaning, you've never racked the slide? That to me sounds like inexperience not someone that has owned firearms for 45 or even 35 years. If you were to have a magazine in place, when you racked the slide, the slide would stay open and you would not be able to perform a functions check. Without performing a functions check you would not know if the gun was opertational until you have it loaded and if you have it loaded, need it to save your butt and it did not operate correctly, its a little to late. Are you sure you don't want to rethink what you said there, wbnatt? I have used firearms for 34 years, on my own for 27 of those years. when I put a weapon back together, I ALWAYS do a functions check before I load the firearm. I don't care if its a revolver, bolt action, lever action, semi-auto etc. I would never load a gun unless I was absoulutely sure it was operating correctly. Some semi-autos will not fire/dry fire unless there is at least an empty mag in place and others do. But one thing is for sure, you can always rack the slide regardless if the mag is in place or not.
Please rethink your position on this one, they are not talking about firing a gun, they are saying they cannot rack the slide w/o the mag in place.
 
my sigma .40 is doing the same thing. The slide does not go back if the mag is not in it. I just put about 75 rounds through it at the range. It shoots nut accurate!. So am I missing something too?

I purchased my 40VE about 3 month ago and it will rack without the mag inserted. I have put approximatelly 500rnds through it without fail. I am with the rest of the guys here, contact S&W and send it back. There has to be something wrong with it.
 
update for the .40 slide problem

When I posted my thread yesterday about having the same issue with the slide not going back with no mag in it. Well, it frustrated me that it was doing this so I tested over and over yesterday, just to make sure I wasnt missing something. It was infact doing just what I said so I put it up and took a step back just to think it through so more. Today I picked it up a started testing again....well wouldn't you know it; the gun seems to function perfectly now! Only one thing that I felt I did is opened it up checked the internals. I noticed the recoil spring was sitting on the top notch and not the bottom one closest to the barrell. I have no idea if this position of the spring could be the issue. Either way i fixed its placement and the gun functions properly. Any opinions?
 
When I posted my thread yesterday about having the same issue with the slide not going back with no mag in it. Well, it frustrated me that it was doing this so I tested over and over yesterday, just to make sure I wasnt missing something. It was infact doing just what I said so I put it up and took a step back just to think it through so more. Today I picked it up a started testing again....well wouldn't you know it; the gun seems to function perfectly now! Only one thing that I felt I did is opened it up checked the internals. I noticed the recoil spring was sitting on the top notch and not the bottom one closest to the barrell. I have no idea if this position of the spring could be the issue. Either way i fixed its placement and the gun functions properly. Any opinions?

I think you just found another use for Duct Tape.
 
damn vector, i think you took wbnatt to the shed on your response lmao! but you are 100% correct. you must do functions check on your firearms.....period. Ive be in the presents of a guy who did not do these checks and accidential discharge a round from his pistol into bedroom floor. Its very dangerous not to examine and test your guns!
 
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