CM9, failing to go fully into battery

[Beachboy]

Hello all,

First post, new to this forum, but not new to forums or Kahr's. on my 4th one now and it's showing me a new twist that I'm not comfortable with.
Today on it's 2 nd 100 rd shakedown, it began not fully seating in battery, under recoil. A push forward seemed to seat it and I carried on.

The more I fired, the more this happened. I stopped unloaded and then disassembled and cleaned it (yes it was cleaned prior to this session and yes, I know some do take the 200 rd break-in). After clean and reassemble I start hand cycling it and noticed tha it was not seating flush to the end of the recoil spring guide rod. And when it was flush, it was easily pushed out of battery by lightly pressing on front of the slide. Took it apart and checked the springs placement on the guide rod all appeared okay.

Back to fire more rounds and the failure to fully go Into battery continued. Then watching it as I slowly pulled the trigger, I noticed that by pulling the trigger, the slide would continue forward, until it was fully in battery, the trigger would release striker and it would fire. The gun wasn't firing out of battery, but was being helped to reach battery by pulling the trigger.

I had not experienced anything like this out of my P9, K9 or CW40.

I don't think the pulling of the trigger should be seating the slide and barrel into battery.

Anyone else seen this type of malfunction (yes, I consider it a malfunction for trigger to be seating slide and barrel).

[jocko]

call ckahr or email kahr ; attn Jay state ur issue. ask for a new recoil spring assembly. Start there first. Usualy takes care of alot of things..

when they agree to send u a new recoil assembly, while ur waiting, take the slide off and with some fine 600-800 grip paper run it in the slide grooves to smooth it out even more, ur not removing anythig, merely polishing it up. Might just be a slight burr there somewhere. Lube it and try the new springs. ur right pullin the trigger should not bring the slide into full battery.

I would also polish the feed ramp and the chamber while ure waiting. Ur not gonna do anything but enhance reliability. supin is cuasing this and my bet the recoil assembly si out of whack..

[gb6491]

Beachboy,
Welcome to the forums:)
In addition to what Jocko has mentioned you might give these threads a look:
http://www.kahrtalk.com/showthread.php?t=18185
http://www.kahrtalk.com/showthread.php?t=18612
Have you broken the slide down and cleaned the extractor parts (to include the tunnel)?
Regards,
Greg

[Beachboy]

Jocko and Greg,

Thanks to both.

To answer your question, no I haven't detail stripped the slide yet, but will tomorrow evening. I did check the extractor claw and it is allowing the cartridge rims to slip under without problem and holds cartridges in place until they hit the ejector.
On a side note, the ejection was very uniform when firing, everything landing in the 3:00-6:00 range, all within a 3 foot circle or less.

All help is appreciated and thanks for the welcome, too.

[CJB]

dirty striker channel - clean it

could be uneven "set" in the striker spring vs the recoil spring,

if cleaning the striker channel does not work, then call Kahr, and I suspect a new recoil spring will be sent

its frustrating, but .... once you get the pistil broken in, it'll be fine.

remember - the small Kahr's are very very fine tunes for performance while being very small. Vary that tuning just a little, and you get some problems. Not that they are fincky, just that things have to happen in a certain order....

[Beachboy]

CJB,

Already on the plans for tomorrow evening, giving the entire slide, including the striker channel a good cleaning.
No worries about giving up on it, I'm sold on the Kahr line.

Thanks for the tips.