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Discussion Starter · #1 · (Edited)
Hi All,

I recently purchased a Gen 2 .40 cal this past weekend ($379+tax) which I thought was a fair deal, I was offerred $50 more for a trade-in than I had been many other places so everything worked out well. Put 100 rounds through it Sunday, no issues. This was the first Carbine/Rifle I have ever used and I will say I was pleasantly surprised at how smooth it felt shooting and expected a lot more recoil.

I may have over cleaned it Sunday night and removed too much oil. When I manually chamber a round now, the slide does not close fully. Unless I have it locked back and release it, I can't get a round to chamber. Have added oil in a few spots but doesn't seem to have helped any. I did order an operating handle and tube cover from Tacticool.

I couldn't find in the manual any specific places to oil. Does anyone have a suggestion?

Also, I'm fairly new to the firearm seen, and this is my first .40 gun and first time using a .40 cal weapon. I purchased the Winchester (White box) 165g ammo and it has a terrible odor when firing. Since I am closer to the ejector than on a normal firearm, I can't fire more than 3-4 rounds at a time without needing to take a second to breathe. I even use Nasal screens when I shoot to prevent myself from breathing in too much of the gun powder.

Is it just this brand of ammo or something specific to .40 ammo? I don't notice anything this terrible when I fire my 9mm or .380s. Perhaps someone will understand what I'm referring to. Will try a different brand next time around.

All in all, if anyone is considering buying one, I would say it's a fantastic carbine for the money. It's extremely light, fun to shoot, and very accurate. I looked at a CZ Scorpion Carbine but it was several pounds heavier, did not store as easily, and was nearly 3x the price. Wish I could have found a 9mm for less than $479, but I am pretty satisfied with my first Carbine/Rifle from Kel-Tec (if I can get this slide to work properly again!).
 

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I installed a Keltec heavy bolt and Sumo charging handle on a Gen 2 9mm. I started to have a problem with the bolt binding and having to release bolt all the from rear for round to chamber. This is what I found. For some reason the charging handle was hitting end of slot and caused end of slot to bend down slightly and rubbing hard on bolt. Heavy bolt is made from brass. I polished bolt to remove rub marks and used Dremel tool to remove small amount of metal in slot so bolt would not bottom out on slot. After doing this the bolt would slide forward without binding. Anyway that's how I fixed mine. The only difference in the 9 and 40 is the forward bolt and barrel. I also have a Gen 1 & 2 40 cal
 

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Discussion Starter · #3 ·
Thanks for the info. I am really not wanting to throw another $50 into this gun just to get it to work how it should. I am planning to hit the range again this weekend, and will just shoot 14 rounds, then reload. I will strip and clean/oil and if it still has the same issue I will try that out. I think I just got a little too carried away with cleaning the gun due to the smell of that ammo, didn't want it in my house.
 

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As for the bolt not fully closing, did this happen after you installed the bolt tube cover? (maybe something is dragging there) Did it start happening after a different type of ammo? Since it was working to start with, but not now, I don't think you need to spend money...just spend time trying to figure out the root cause of the malfunction.

Are there witness marks indicating something is dragging?
Did clean the chamber? (clean and dry it and see if the issue persists)
Does it happen with the mag removed? With the mag in? When only certain mags are used?

I have a Gen 1 .40 cal S2K (Glock config) and other than 1 feed issue in the first magazine fired through it, it has been flawless. I love it (other than the difficulty in mounting a red dot).
 

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Discussion Starter · #5 ·
I have not installed the bolt tube cover yet, it is still on the way in the mail. I have only used one brand of ammo so far. It only started after I wiped it clean. The gun should still work, it's just not let me manually load a round. I have to leave the bolt locked back, insert mag and let it slam it in there. It seems to get stuck about 1/2 way closed, doesn't seem to be touch anything. I think I just removed too much of the oil and it's causing an issue.
 

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WAIT!

You're not manually placing a round in the chamber...like with your fingers?

BIG no no. Always load the first round by pulling the bolt back and letting it slam home...that's the correct way...and safest way.

If a round is in the chamber already, and you let the bolt slam home...and if the firing pin should be stuck out...you COULD have a Negligent Discharge of the round..
 

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Discussion Starter · #7 ·
WAIT!

You're not manually placing a round in the chamber...like with your fingers?
Of course not, lol. But it's become exponentially harder to chamber around if the slide is closed, clip inserted and you attempt to chamber a round. It was much easier when I got the gun before I used/cleaned it.
 

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Try pulling the bolt out and check for scratch marks on the bolt itself. If found, do some light sanding with some emery cloth, lubricate it and wipe it clean. Also check the bolt tube and clean it. I use a 12 gauge shotgun barrel brush to clean mine.
 

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Don't ride the bolt forward. Pull it and let it fly, just like you do when you release it from the hold back notch. It needs to feel the spring and acceleration until it gets broken in.
 
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