New CM9 from GunBuyer

[187911]

This video shows how to change the striker spring which controls trigger pull. I used the Wolff 5 lb spring, not the MCarbo. I see no reason to change the striker block spring. I like the stronger spring for the block...adds a little extra "safety".

https://www.youtube.com/watch?v=MTET6m-vgR8&t=36s

https://www.youtube.com/watch?v=t64ckeGGXPQ&t=698s

Yea I've done that with my K9 and K40. I'm interested in polish the trigger and trigger bar spring.

[oldtimer]

Not meant to offend but do not understand the need to change springs, adjust trigger on a quality carry piece, could cause you liability issues down the road. On my range /target guns I will do some trigger work but the CM9 is not that.

[handlebar]

Not meant to offend but do not understand the need to change springs, adjust trigger on a quality carry piece, could cause you liability issues down the road. On my range /target guns I will do some trigger work but the CM9 is not that.

No offense taken, I shoot a lot of revolver and the original trigger on the CM9 was too heavy for my taste. I put in a 5 lb striker spring and it is now closer to a nice DA revolver trigger like my S&W 642 and my S&W 586, which is used as a target revolver with a 2 lb. trigger. A 5 lb trigger on the CM is still heavy enough to not go off unless you pull that long trigger pull and gives a positive reset. It is not too light that may be considered a "hair" trigger. That is why I avoided the MCarbo spring kit. Accuracy has improved, as well. If I ever use it for defense, which I hope I never have to do, my liability issue is far greater than a 5 lb trigger.

[MMyers1970]

Is there a thread or video on doing a DIY Kahr trigger job?

https://www.youtube.com/watch?v=t64ckeGGXPQ

I've done that to my CM9. It's easy. My advice to you is make sure you hold onto the spring when you remove it. The polish and grease made a world of difference.

[wally1]

That video is lame, but it does show the disassembly process. I have the Wolf 5lb spring on my PM9, replaced the trigger bar and polished it with a Dremel before installation. The trigger feels good and I don't consider it too light. I would never sand down a spring like in the video, if it had visible wear, it would be replaced.
The hump on the trigger bar was flattened down a bit, looked hammered down. I also polished the top of the hump on the new bar.

[MMyers1970]

That video is lame, but it does show the disassembly process. I have the Wolf 5lb spring on my PM9, replaced the trigger bar and polished it with a Dremel before installation. The trigger feels good and I don't consider it too light. I would never sand down a spring like in the video, if it had visible wear, it would be replaced.
The hump on the trigger bar was flattened down a bit, looked hammered down. I also polished the top of the hump on the new bar.

The spring from Kahr had a burr inside the apex of the curve. That's part of what caused the creak.