SW9VE DA Fullauto????

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davec921

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Aug 27, 2008
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Ok let me start out by saying I have owned long guns since I was 10.
I am very familiar with gun safety and have a fairly good idea of how things work. If I don't I research to find out how they do.

I just recently bought a SW9VE about a month ago an have put 1700 rounds through it in that time. In an attempt to understand how it all works being it is a DA an only has a trigger safety I opened up the guts of the rear sear. There is not much to it as I thought. I took it all apart an all so used my dremel to polish all the metal part of which there was few.

Having done this really smoothed out the trigger pull for the gun. I have had the trigger pull measured an it is just over 8 lbs.

Now either Im ignorant or the people I have talked two are an I would like to know who is.
At the range one day I was talking to a guy from Texas. He said he was a instructor at another range an taught CCW classes.
I let him look at my gun an told him what I did to the trigger as in smoothing it out. When is pulled the trigger, down range of course, he was some what pleased. Said I did a good job an that he thought it was now a 4lb pull.
That is when I had it measured an it is just over 8lb.

Any ways he also said to be careful in that I don't make the gun go full auto.
The next week I was back at the gun shop range an talking to another gun that works there. He said the same thing. don't mess with it two much or it will go full auto.

The thing is I don't understand how I could make it go full auto being that it is a DA gun.
from what I have seen inside the gun the only way the firing pin is pulled back is with the sear. an the only happens when the trigger is released from the first shot an re engages the sear in the gun.

From what I can see it would be like trying to make a revolver go full auto.
Am I wrong in this thinking that my gun by me can not be made to be full auto. I assume a gun smith who does some major rework could pull it off.
But all I plan on doing is polishing the internals to make the pull smoother.
I even like the heavy trigger an don't want to change it.

So am I wrong or the others wrong?

Disclaimer Had i messed up the gun to the point it where not the work properly I would have sent it to the factory to get fixed. I have been in to paintball an shot guns for over 10 years an have pulled them down an worked on them. I am use to small parts an understanding how it all works
 
Sigma full auto

It's not possible, like the glock the firing pin is not under tension untill you pull the trigger back causing the sear to engage and pull the pin back until it slips off the sear releasing the firing pin. the only problem that could happen is polishing or honing the sear and changing it's angle , releasing it to early or it hanging up.
 
A DA gun generally won't go full auto but you could get a double shot with one trigger pull if the firing pin slips from the sear engagement before the trigger is reset. The gun then will not fire until the slide is cycled and the trigger reset. I had this problem with my Glock 19 soon after I bought it, sent it back to the factory and they fixed it. Worked fine for the next 10 years or so. Then they had an "free factory upgrade" at a local gun store to stainless parts and the problem reappeared. This time I took it to a Glock armorer and he said it was sloppy work and not checking engagement properly. The sear they replaced in the "upgrade" had too little engagement and replaced it with a correctly engaging part. Its been working fine for the last 10 years so I'm sure its fixed.
 
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