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Now that my Kahr is an SBR - Broken Extractor


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I have a few issues to iron out and am running out of low hanging fruit.

 

I have some serious ejection/Stovepipe issues. I had them rarely before, and now the issue is every 2-3 rounds or worse.

 

Essentially - the spent case wont eject, or if it does, its not flying much of anywhere (barely jumping out of the receiver and falling straight down). At first I thought perhaps I am oversprung/on weak ammo so I bought the EZ Pull kit. Installed and the problem is now worse (seems counter-intuitive which means my assumptions were wrong).

 

So as I can see it now - the issue is either the extractor, the ejector, or both. Many of the rounds come out of the chamber and the case does an abrupt 180deg rotation and double-feeds with the exit round.

 

Thoughts?

 

Attached a pic of my extractor, and the position of the ejector from the outside (its not flush - but I dont know if this is normal).

 

The extractor seems loose to me - I can move it readily with little effort.

 

Thanks.

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Edited by tgoldie00
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Whelp....fixed one thing, broke another....

 

Gave the ejector the extra turn it had left in the threads. Went back to the range and it was running like a top for 25 rounds...then a 2 shot burst - then nothing. Before the burst brass was ejecting nicely - good arc and as one would expect. Ugh.

 

Pulled the bolt back and the broken extractor fell to the floor (see pics).

 

Anyone have an extra?

 

Does USGI work in these?

 

Lastly - why the hell would they pin an extractor? Thats just asking for a failure - which is precisely what happened.

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Edited by tgoldie00
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after all this time what do you expect from a kahr !! just sayn

Can’t say you’re wrong. I bought this from a friend so at least I didn’t pay full. Lol

 

Do USGI extractors fit? I mean drilling an unnecessary hole, flitting a roll pin to a part unnecessarily aside (I’m guessing this means my bolt is crap - and that this was Kahr’s solution to extractors jumping out).

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the irony is of course now that I am looking at my pictures again, it was already broken before I went out on the second trip - I just didn't notice.

 

However thinking now USGI extractor perhaps staked to see if it will hold before trying to track down a new bolt. Anyone have pics of some staked extractors so I can see what has been done?

Edited by tgoldie00
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USGI extractors fit beautifully. I had the same thing happen shortly after purchase, new in the box. I bought some extractors on gunbroker in a pack of 5 for not a lot of bux (don't remember how much). Don't buy one from Karr, more money for a re-pop with the same intentional flaw. Pin is/was a stupid idea. Deliberately creating a weak point on a spring-loaded part is even more stupid. I would say, don't replace the bolt unless you have money burning holes in your pockets. I didn't. The hole in the bolt is nothing of major concern unless you see cracks coming from it. FWIW, My $.02.

 

Karl

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USGI extractors fit beautifully. I had the same thing happen shortly after purchase, new in the box. I bought some extractors on gunbroker in a pack of 5 for not a lot of bux (don't remember how much). Don't buy one from Karr, more money for a re-pop with the same intentional flaw. Pin is/was a stupid idea. Deliberately creating a weak point on a spring-loaded part is even more stupid. I would say, don't replace the bolt unless you have money burning holes in your pockets. I didn't. The hole in the bolt is nothing of major concern unless you see cracks coming from it. FWIW, My $.02.

 

Karl

Karl,

I have 3 USGI NOS on the way (or they will be in a day or two). I’ll probably do a test fit prior to staking and see how they hold. If it holds great, if not I have a center punch and can make sure that doesn’t move going forward.

 

I’m also not concerned about the drilled hole. Looks to be done well - as dumb of an idea as it was. No cracks apparent.

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the irony is of course now that I am looking at my pictures again, it was already broken before I went out on the second trip - I just didn't notice.

 

However thinking now USGI extractor perhaps staked to see if it will hold before trying to track down a new bolt. Anyone have pics of some staked extractors so I can see what has been done?

I staked my extractor like this ... It's never been an issue since. Your ejector has some wobble to allow it to hit the slot in the bolt ... Basically a loose tolerance.

 

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Thanks to all for the help this far. This is a pretty fantastic community -

 

Dare I say a Kahr/Thompson support group of sorts. Lol. If the factory can’t make it work - damn the torpedoes - full speed ahead - we will!

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The extractor slot on new guns is rounded rotory tool cut. Gi and older semis are broach cut with square corners. A GI extractor may have clearance issues. Kahr rounds the edges a bit. That being said.. If you rest fit.. You could maybe do the edge rounding on a GI extractor if needed.
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The extractor slot on new guns is rounded rotory tool cut. Gi and older semis are broach cut with square corners. A GI extractor may have clearance issues. Kahr rounds the edges a bit. That being said.. If you rest fit.. You could maybe do the edge rounding on a GI extractor if needed.

I have seen your posts previously about this and am aware. Ill see how things line up and go from there. I can file the new extractor as needed to make it run smoothly.

 

With any luck it will fit. If not - I presume Ill know by actuating the bolt in the receiver and observing interference/drag on the receiver channel?

 

I hone vintage straight razors and have an awesome progression of stones to work with to take tiny amounts of material off and polish with. Im hoping those will be useful (some low grit diamond stones all the way to 20,000 grit polishing synthetics) if I need them.

 

My Kahr is 2014 production.

Edited by tgoldie00
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Well the USGI extractors arrived today. Deerslayer was correct in that there were some initial fitment issues to be dealt with. The Kahr extractor slot at the front of the bolt is indeed rounder and less oblong than the notch on the extractor.

 

I kept the broken Kahr extractor so I was able to file the USGI notch and remove just enough material to get a good and stable fit without it being too tight - just using the Kahr extractor as a template. I also filed a bit of finish and a wee bit of metal off of the top of the tip of the extractor - even when fully and properly seated it looked thicker than the Kahr at the front, and barely cleared the receiver cutout - so just for safety I gave it a bit more room. Once I had tested retention with some brass and felt everything was operating as it should, I staked the rear of the extractor to the bolt.

 

Off to the range I went and everything went swimmingly. Flawless operation over 75 rounds (not a lot but a decent sample to start with). With my newly adjusted ejector brass was flying quite consistently about 10ft to my right and about 1-2 feet forward at the landing point. I feel like this is a good ejection pattern - its consistent and its working. One note that's new - the bolt wasn't holding open on last round fired. I presume this is a result of the EZ pull spring kit perhaps - nothing on the magazine has changed and it was working fine before. If I manually actuate the bolt with the magazine in it locks back no problem. Not a huge concern but if anyone has thoughts on that I am all ears. Before the magazine would not feed the last round but would lock back - now it feeds the last round but doesn't lock on empty. lol

 

Upon return to home a quick inspection yielded no new defects major hardware for the time being - so I think this is - for now - working as I would like it to!

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send your experence fixing the extractor to the kahr factory, i wonder if they will reply ? just sayn

I mean I would love to make the point that they are actually breaking more than they are fixing by drilling and pinning the extractor at the critical bend point of a spring....and that staking is as or more effective, less labor intensive, and won’t result in the expense of future inevitable factory repairs - but then again I would be writing to the dummy who dreamt that awful repair logic up to begin with so I doubt it would resonate at all...but point well taken none the less!

 

The worst part to me is I am no gunsmith nor do I have any formal training in trades of any kind. I am a bit handy, have the right tools (or will get them), and can follow directions....lol. But I mean seriously. I do understand a bit about how these things work in general and I am mechanically curious - and if I can determine that their repair is just lazy/poor logic and execution - I fear for the qualification of the people in that Kahr shop. Good lord.

Edited by tgoldie00
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Glad it worked. You must have removed the magic amount! If anybody else is trying it remember you need enough clearance for the extractor to snap over the rim of the cartridge not just close on an empty chamber. Kahr won't listen. Waste of time.

It helped having the Kahr made broken extractor handy. Then it was just remove a tiny bit of material, test fit, compare. Wash, rinse, repeat until the extractor seated. Then I used an empty case to test (outside of the receiver) that it would flex as needed to cycle without any “stickiness” but with as much material on the tab left as possible.

 

Once the above looked good and functioned as designed - into the receiver to check clearances and again, remove tiny amounts of material as necessary till everything moved smoothly and closed as designed. Repeated function testing with snap caps to confirm it would chamber and eject under manual force is as good as I could get until I got to the range.

 

I likely got a bit lucky as a first-timer....hopefully I won’t have to do this again too soon but it’s not THAT bad.

 

I appreciate you chiming in - you reiterated where I needed to be looking so I wasn’t aimlessly making adjustments. Much appreciated sir.

 

 

***for anyone attempting - one important thing to note is that due to the difference in size of the recess in the bolt (front near the face) and the tab on the USGI extractor - if material needs to be removed one can’t just remove it only from the front or the back. To maintain the ideal position of the extractor claw one must take a bit off of the front AND the back to get ideal fitment.

I had a Kahr extractor (my broken one) as a guide to get the positioning correct.

 

if one removes too much front or back the extractor either will have inadequate purchase on the case rim, or it won’t be able to slip over the rim at all. TAKE YOUR TIME but it can be done! It’s more about patience than skill. That and a good file. ***

Edited by tgoldie00
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