PM9 trigger reset failure problem

[lubelizard]

Purchased a used PM9 from a local shop. Based on the serial number, it is likely a couple years old, but there does not appear to be much wear on it (i.e. shiney spots on the barrel assembly). I cleaned and lubricated it as per the manual, and stored it away. After at least 3 months, I took it to a range today. I used a standard 6 round mag that came with it, and a new 7 round mag. I was firing FMJ standard pressure rounds. It did not have any feeding problems. However, after the first couple magazines, the trigger failed to reset randomly after the first round was fired. I didn't top off the weapon with one in the pipe, just a full magazine. Both magazines appear to be free of defects. The slide would return to battery, as I tested this when the failure to reset would happen. It'd "pop" and I felt something in the frame click when I would pull the trigger and it was not reset. Pushing the trigger forward just a bit would reset it. After 50 rounds, it got worse. The last couple magazines I was pushing the trigger forward almost every round. I brought it home and tried to replicate the problem with a dry fire exercise, but it won't repeat the failure. While at the range, I didn't let the magazines drop to the floor, but released them over the table so they were not damaged.

I just tried something that may shed light on the issue. Clear weapon, I cycled the slide, and just as it is fully forward, I hear the same pop sound I heard when the trigger had to be reset manually. I pressed onto that little access cover on the right of the frame, cycled the slide again, and no pop, but as soon as I lifted finger pressure from the access plate, it would make that pop sound.

[lubelizard]

Sent it to Kahr. They replaced the trigger bar, cleaned and lubed it, test fired it, and returned it in less than 2 weeks. Outstanding customer support. Thank you.

[JFootin]

Cool! I'm surprised that jocko, Bawanna, Greg and others didn't chime in on this one. But you did good detective work to gather clues, and then the C.S. people were able to go right to the problem and correct it.

Happy shooting from here on out!

[jocko]

not much to chime in on, he did the right thing, I would have said it was an out of spec trigger bar and then it needs to go b ack. Doesn't happen alot but a dead trigger is a sign of aqn out of time gun and if the slide is goinginto full battery then the culprit is normally the tri8gger bar. Sometimes it is har dto understand why a trigger bar which is all steel can work for so long and then all of a sudden it causes light stri8kers. I wold guess it is a combination of the rest of the gun now finally seating itself in well and the trigger bar now causing an issue, as there is virtualy no wear in the trigger bar area. Glad kahr did it right and fast also..

[Bawanna]

I think I was gone when this was originally posted and I must have missed it when I got back. I do love a happy ending though and just like Jocko said lubelizard did the right thing.

I glad you came right back with a good report. We have more than enough negatives in the world lately.