Thanks to those who helped. CM9=Success!

[RogerP9fan]

I was having the issue of early slide lock back in the middle of firing. A few members helped me with the solution. I used fine sandpaper and removed just a little bit of metal from the slide stop and BAM, I've got my first flawless Kahr. I'm starting to feel the joy of others who have trouble free pistols. It's great! :D

Unfortunately, can't report the same for my new CW45. Second range trip today confirmed that after you shoot the first round, the trigger does not return to the proper position to fire again. You literally have to take your finger and push the trigger forward so that it will engage internally.......then pull and it goes bang. You have to do this for each round other than the very first one. The range officer experienced the same exact thing as I, in fact he's the one that told me about pushing the trigger forward to engage it.
(This is eerily identical to my P9 heartburn of last year) :(

[jocko]

a real shame, if u hyad a duck it would surely drown, send the fokker back on kahrs dime, definitely a timeing issue..

[Bill K]

Sorry about your CW45 issues.

Had to do the same slide stop mod on my PM9. I used a sharpening stone to do a bit of honing.

[RogerP9fan]

I'm stunned that I a got a second new Kahr pistol that has a trigger that doesn't reset properly. Am I cursed? Or is this a common problem?

[gb6491]

...

Unfortunately, can't report the same for my new CW45. Second range trip today confirmed that after you shoot the first round, the trigger does not return to the proper position to fire again. You literally have to take your finger and push the trigger forward so that it will engage internally.......then pull and it goes bang. You have to do this for each round other than the very first one. The range officer experienced the same exact thing as I, in fact he's the one that told me about pushing the trigger forward to engage it.
(This is eerily identical to my P9 heartburn of last year) :(
Roger,
As it seems something is interfering with the trigger or trigger bar, I have some suggestions.
First, the magazine: with it out of the gun, do you still have the problem? You could check this by dry firing and hand racking the slide or better yet, chambering a round and dropping the magazine before touch it off.
If the problem goes away with the magazine removed, I would check to see if it is binding the trigger bar at some point. Here are a few places to check:
http://i53.tinypic.com/10z6xad.jpg
http://i53.tinypic.com/jtozdt.jpg

If the problem persists with the magazine removed: see if the side plate or any other polymer along the full length of the trigger bar could be preventing it from returning to this position (I'd install the slide stop in the frame when checking):
http://i52.tinypic.com/2rz8fp2.jpg

Another couple of places to check for interference would be:
The bottom of the feed ramp:
http://i55.tinypic.com/qsmjnn.jpg
Burrs or other damage to the barrel lug:
http://i54.tinypic.com/plo4i.jpg

One other question:
When you push your trigger forward does the front of it go past this point in the frame?
http://i54.tinypic.com/55fckk.jpg
I ask because the clearance is such that I can force the trigger on my CW45 past this point. There is no way I can do it on my CW9. That leads me to believe that it isn't designed to go that far forward. Now, forcing the trigger past that point should give the trigger bar more travel to reset and that suggests a fix (removing some material from the trigger or frame at the point they meet), but I think it would be indicative of an out of spec trigger bar or cocking cam.

Regards,
Greg

[MikeyKahr]

gb6491, you rock!! Your photography, thought processes, helpful suggestions and corresponding explanations (and awesome red arrows too!) have been such a help to me and to others on this board, so I just want to say thanks to you for being such a help! Let's hope this little R&D-type tutorial will help our friend out so he doesn't have to send it back to the mothership.

BTW, Greg, your new designation is Professor. Let me know when and where I can sign up for classes!

[Joe L]

Greg--excellent! There is always a mechanical cause for the problem, you have shown him what to look for.
Joe

[RogerP9fan]

Greg,
I couldn't agree more with the others. You are such an incredible help and your willingness to help is even more incredible. Pictures are worth a thousand words.

1) The trigger bar is not being interfered with by polymer or the magazine when inserted. Trigger bar has unimpeded motion.

2) The only potentially abnormal thing I noticed is that with the slide stop inserted in the frame only and as I slowly insert an empty magazine, it contacts and pushes up the slide stop. (But I'm not having any "early slide lock open issues on with this pistol)

3) There are no burrs or any abnormalities of the barrel.

4) All rails are normal, including the rear metal tabs.

5) It was the range officer that said he pushed the trigger forward to get it to fire subsequent rounds. (Looking at the trigger, it doesn't appear to have the ability to move further forward from it's normal position.) I didn't try to see if I could do it because I figured at the time, what's the point? Would you suggest I go to the range tonight and try it?

[RogerP9fan]

The first night I brought home my new CW45 I was dry firing. I locked back the slide and removed the magazine then held the slide, released the slide stop and gently rode the slide to battery (so as not to slam the slide onto an empty chamber) This is when the trigger did not engage upon dry firing. I though it was just my imagination or flashbacks of my P9. It happened one more time while dry firing (trigger did not engage) but all subsequnt dry firing has been completely normal since those two initial incidents.
The problem occurs during live firing only. Consistently. Can't shoot more than one round.

[gb6491]

First, I want to thank all for their kind comments; they are very much appreciated:)

Roger,
It certainly wouldn't hurt to give it a little more range time. I would suggest a good cleaning first and leave it a little dry (less lube) and try it that way . If that gives you no joy, lube it up good and try. By all means, give the trigger a push forward if it does fail on you and see what happens.
I did forget to mention another spot to check. Check the cutout in the slide rail that provides clearance for the trigger bar disconnect lobe for any damage,burrs, or any other possible clearance/binding issues.
http://i56.tinypic.com/33vdf6x.jpg



The problem occurs during live firing only. Consistently. Can't shoot more than one round.
One other thing you might want to try (eliminate some variables): chamber a round and drop the magazine, then fire the chambered round and see if the trigger resets correctly without a mag in place.

Regards,
Greg

[jocko]

2) The only potentially abnormal thing I noticed is that with the slide stop inserted in the frame only and as I slowly insert an empty magazine, it contacts and pushes up the slide stop. (But I'm not having any "early slide lock open issues on with this pistol

roger P9, unless I am not reading the above right, that is what an empty magazine is supposed to do, push up that slide stop lever. unless you might be referring to the magazine body itself making contact with the slide stop lever, which it should not make contact at all..

I am assuming the upper slide internals are all working as they should. If the striker channel has a burr, gum or what ever in it and it preventsthe striker after firing from returning back to its original place, it can cause a failure to triger reset. The cocking cam can interupt this sequence

If u have done what greg suggested, eliminate the possable starting with the magazine as maybe an issue not the magaazine, then proceed to the barrel and eliminate that etc, . sitting there with no slide on the gun and no magazine, if the tgrigger returns freeely as u have stated, then u have eliminted all the bottom portion of the gun, and when a magis inserted and still no restriction, and barrel etc, and still no restriction, then proceed to the slide, where the issue has to now be. U should be able to pull the trigger and move the slide about a 1/4" back and it resets the trigger etc, and u should be able to dry fire it again, if u can't do this then the cocking cam is being interupted just enough to cause a dead trigger..

I still think the gun will need to go back but again as greg suggested give it another 50 rounds, one never knows...

[RogerP9fan]

Greg,
I inspected the area on the slide you just pointed out and all looks fine. I will have to head to the range to do the fire test with the magazine removed. (Unless I can get away with it here and hope the neighbors presume it's just early firewoks) lol J/K of course.
Alright, I'm gonna hit the range tomorrow after work to run the test. Bring along the CM9 and Glock 23 just in case I don't get too many .45 bangs. But, I appreciate the ideas and potential solutions and I'm staying positive. I really like this CW45.

[RogerP9fan]

Jocko,

Thanks for your suggestions. Of course, you're right. I wasn't thinking. That is the purpose of an empty magazine. So, I ran the same test, this time with a Speer Gold Dot in the magazine and it clears the slide stop, no problem.

I just ran your dry fire test of pulling back the slide only 1/4'' to reset and indeed it does it everytime. No problem.

I'm no expert obviously, but I was thinking, could it be the spring down there near the trigger? Doesn't have enough tension to return the trigger fully during live fire? Well, it does during dry fire, so hmmmmmmmm?

Do you think if there were something in the striker channel it would create this issue only during live fire and not during dry fire?