slide locking back


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geronimo509
February 1, 2009, 09:26 AM
I just bought a new/used Kahr MK9. some guy sold it to my gunshop/smith without ever firing it, and my gunsmith put 2 or 3 mags through it with no problems. He was about to clean it and put it on the shelf when i came in. I got a good deal and took it home with me. When i cleaned it, it was NOT dirty at all! It still had the stuff from the factory on it(it was blue by the way, never saw that before). Its great except for the slide locks back every few shots! I called my gunsmith and told him that. He said he put a new stainless steel guide rod and springs in it and that i needed to break it in, and the recoil spring is probably too strong. No malfunctions of any kind, it just locks back. I've never had that problem before. Is my gun smith right and the recoil spring is to strong? I put some wolff springs and guide rod in the gun, and im hoping that will fix the problem. So my main question is, Is there a specific reason why the slide locks back? ammo? recoil spring? it happened with american eagle 115gr fmj and rem golden sabers 147gr. It happened with the flush mag and 3 of my 7 rounders. I am lucky and have a great gun shop/gunsmith and he's always honest and has good prices and doesnt lie to people so i know he will take care of me! I just like getting advice from more than one person.

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Ringer
February 1, 2009, 09:42 AM
When I first bought my PM9 a few years ago it had a similar problem. Not every few rounds but the slide would sometimes lock back prematurely. Since it was new I sent it back to Kahr. They basically ground a little off the slide stop and it's been fine ever since. I can't say this is your problem but that is my experience. I'm not sure how a new spring would cause it to lock back but I'm sure others who know more about that will be along.

I really like the little Kahr for the right occasion and am close to buying it's big brother P9. Good luck getting it straightened out.

geronimo509
February 1, 2009, 11:04 AM
no other answers lol
thanks ringer

jocko
February 1, 2009, 01:43 PM
go with what Ringer says, that is the area to look at. You rpobalby have an out of spec slide stop lever, very easy adjsuted with a file to.

Ask any 1911's owners,

Drail
February 1, 2009, 11:06 PM
The slide stop is getting bumped by an upcoming round. The part of the slide stop facing the magazine needs to be filed/stoned back to allow clearance. The slide stop may also simply be bouncing up in recoil because the spring loaded plunger is not holding it down. Check the tension on the spring, it may be worn out. Also check to make sure your thumb is not engaging it when firing.

fguffey
February 2, 2009, 01:24 PM
do not have a clue, My wife started shooting the same pistols and ammo I use, I started her off with one round in the magazine and the slide back, 10 rounds 10 cases did not clear after firing, most turned sideways, return spring too heavy? Ammo not loaded heavy enough? could have been both or either, I do not have this problem with the ammo or pistol, she was not holding the pistol tight enough, I fixed this problem with new ammo, I expected the slide to lock back after each firing, had I put two rounds in the magazine I would have to consider there was a feed problem with a jam, this did not happen.

Again, I was at the range when I noticed the person next to me having trouble, he had a new pistol, new ammo, he said something about taking it back then handed it to me, I shoved the magazine up, released the slide then shot 8 rounds, the slide locked back when empty, I removed magazine and replaced it with a loaded one then shot it 8 more times, I explained to him he was not seating the magazine, this caused the slide to lock back after each round was fired.

F. Guffey

e, My wife started shooting the same pistols and

F. Guffey

JAFO_THR
February 2, 2009, 02:11 PM
Is your thumb coming in contact with the slide lock lever? This is a more common problem with Sigs, but I thought I'd throw it out as a suggestion. An easy way to tell is to shoot it left-handed. If the problem goes away, it was your firing hand thumb.

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