I have a Sub 2000 in the .40 S&W. Serial # 121XX.
The rifle has some serious ejection problems.
Some shells get flung out (good), some shells just drop out (not good), and some shells remain in the receiver and cause serious jams (xxxxx). The gun jams about 10 times per 100 rounds fired.
The last trip to the range caused a new one. The gun fired, and the bolt jammed on its was back. The spent shell was still attached to the bolt head. It took considerable force to pull the operating handle back to complete the cycle. This happened twice out of 100 rounds. The other 8 jams were the type that it tried to load the next round while the spent shell was still in the chamber.
I need help, wait no, I am ok, my gun needs help.
Now this is what I have tried so far.
Sent the gun back to Kel Tec after I shot it the first time.
Kel Tec lightened my trigger pull from 20lbs to 9lbs which was a great improvement, installed a metal clip, and said the ejection problem would work itself out once the gun was broken in. At that point it only had 50 rounds threw it. And at the time it did not seem like a serious issue.
I have tried Federal, American Eagle, UMC, Winchester USA, CorBon, most in 135gr, 165gr, and 180gr. None work 100%. Now the Winchester 180gr, JHP (person protection) do better than the others.
I have done a Fluff and Buff polishing the important parts until they shine. I have tried lots of oil, very little oil, and even lithium grease. But it is still jamming. And now I am up to about 500 rounds threw it.
And I only use new Factory Glock magazine, several of them. Still jamming.
So I have been on the phone with Kel Tec and they (Marty and Justin) feel confident that the problem is the extractor. I tell them my extractor looks fine, but they are confident and they mail me a new one. The one I get in the mail looks different from the one in the gun, so I call them and Justin tells me that he sent me the right one. I take some digital pictures send that to him and now they are convinced they did send me the wrong extractor.
But this is where it gets strange.
They tell me to install the “wrong” extractor in the gun, test fire it and let them know if it corrects the jamming problem.
So I have installed the “new/different” extractor and it hand feeds and extracts the rounds fine. But I have not shot it yet. I am a little concerned.
But then I thought maybe there has been a design change to the extractor for the 40cal Sub2K. Or maybe this is how Kel Tec fixes Sub2ks with ejecting problems.
So if you have a SUB2K would you look at your extractor and let me know what type you have? I will include pictures to clear things up.
And does any one have any ideas on what else I might try to help out my favorite carbine?
Here is a picture of the original extractor (large claw) that came with my gun.
The rifle has some serious ejection problems.
Some shells get flung out (good), some shells just drop out (not good), and some shells remain in the receiver and cause serious jams (xxxxx). The gun jams about 10 times per 100 rounds fired.
The last trip to the range caused a new one. The gun fired, and the bolt jammed on its was back. The spent shell was still attached to the bolt head. It took considerable force to pull the operating handle back to complete the cycle. This happened twice out of 100 rounds. The other 8 jams were the type that it tried to load the next round while the spent shell was still in the chamber.
I need help, wait no, I am ok, my gun needs help.
Now this is what I have tried so far.
Sent the gun back to Kel Tec after I shot it the first time.
Kel Tec lightened my trigger pull from 20lbs to 9lbs which was a great improvement, installed a metal clip, and said the ejection problem would work itself out once the gun was broken in. At that point it only had 50 rounds threw it. And at the time it did not seem like a serious issue.
I have tried Federal, American Eagle, UMC, Winchester USA, CorBon, most in 135gr, 165gr, and 180gr. None work 100%. Now the Winchester 180gr, JHP (person protection) do better than the others.
I have done a Fluff and Buff polishing the important parts until they shine. I have tried lots of oil, very little oil, and even lithium grease. But it is still jamming. And now I am up to about 500 rounds threw it.
And I only use new Factory Glock magazine, several of them. Still jamming.
So I have been on the phone with Kel Tec and they (Marty and Justin) feel confident that the problem is the extractor. I tell them my extractor looks fine, but they are confident and they mail me a new one. The one I get in the mail looks different from the one in the gun, so I call them and Justin tells me that he sent me the right one. I take some digital pictures send that to him and now they are convinced they did send me the wrong extractor.
But this is where it gets strange.
They tell me to install the “wrong” extractor in the gun, test fire it and let them know if it corrects the jamming problem.
So I have installed the “new/different” extractor and it hand feeds and extracts the rounds fine. But I have not shot it yet. I am a little concerned.
But then I thought maybe there has been a design change to the extractor for the 40cal Sub2K. Or maybe this is how Kel Tec fixes Sub2ks with ejecting problems.
So if you have a SUB2K would you look at your extractor and let me know what type you have? I will include pictures to clear things up.
And does any one have any ideas on what else I might try to help out my favorite carbine?
Here is a picture of the original extractor (large claw) that came with my gun.