CW45 (and other poly Kahr pistols): issues and fixes

[Bawanna]

At Jocko's request I took the liberty of exercising my relatively new moderator skills and gave this sticky status. I wasn't sure I had that power but apparently I do. Who knows what other magical powers this Missouri farm boy wields and don't even know about.
No doubt in my mind this thread surely deserves it and GB6491 is possibly the smartest man alive and a dang good photographer too.

[jocko]

good man Bawanna, now see if u can make yourself dissapear?


Just kiddin this forum would be boring without your input. but I do thank you as I think the GB 6491 thread is one of the best..

[Bawanna]

Hmm, I don't see a disappear button, there is a delete button, reckon that would work?

[Bawanna]

I know, I'll ask Mr. Surveyor. He's figured out how to make himself invisible!
That would work.

[gb6491]

Dawson Precision front sight installation:
http://www.dawsonprecision.com/image...%20Insert2.pdf


BTW - Thanks Bawanna

[garyb]

GREAT analysis and descriptions of the mods. I have not experienced any issues with my PM40, but if I do, I will refer back to this info to look at any of your solutions that may help resolve the issue. Great work. You put alot of time and detail into this. Should be a sticky. Thanks for sharing.

[OldLincoln]

Shoot, don't know that I've ever seen this before. Makes me want to go buy a CW/PM45 just to work on (yeah, in my dreams). Do we have one for PM9 mods?

[gb6491]

Trigger not resetting:
The problem (http://kahrtalk.com/showthread.php?t=6057):

Haven't seen this one before. Went shooting today with a friend. We ran a couple of mags through the gun and then the problem started. I shoot the gun, it ejects the cartridge, loads a new round but doesn't reset the trigger. So I have a unspent round in the chamber, I pull the trigger and and there is no resistance. I clear the chamber pull back the slide and load the same round and then the gun shoots. But then the same problem occurs again. I can only shoot one round. Has anyone ran into this before? I was shooting Federal ammo, 230 gr FMJ RN. If I had different ammo, I would have tried to see if that was the problem. On the last mag, I did shoot 2 in a row before the problem started again.

A fix as posted by Cash.45:

Hi guys. Just joined the forum as I was looking for a fix for this exact problem. Well, I didn't find it here so I dug into it myself and here's what I found.

1) The trigger would reset all day long manually racking the slide, but if I pulled upwards on the slide while racking it the trigger would not reset.

2) I took the slide off and while manually pushing down on the trigger bar tab (that sticks up for the slide to engage, push down and reset the trigger) I noticed it was reseting the trigger below the level that the slide could depress it.

3) Upon further inspection I noticed the tab (red arrow in attached picture) that engages the cocking cam (blue arrow in attached picture) was bent up at enough of an angle that it required the trigger bar to be pushed down below the level that the slide could depress it.

4) I manually bent the tab down about 5-10 degrees and reassembled the pistol (CW 45).

5) While pulling upward on the slide and racking it the trigger now reset every time.

I just got back from the range and I put 120 rounds through it with 0 malfunctions.

Sorry for the long post, but I hope this helps someone (it sure was frustrating for me!).

How it was accomplished:

Actually, and gunsmiths are going to cringe at this, I removed the trigger bar spring, lower the trigger bar down and manually bent the tab with a screwdriver. I knew it didn't need much of an adjustment and didn't want to disassemble the trigger if I didn't have to.

Nicely done Cash.45!

The trigger bar tab Cash.45 bent is just above the arrow labeled "Trigger bar in contact with cocking cam" in this photo:

[Bawanna]

Thanks Cash45 and Greg for posting it. Good stuff as usual.

[Cash.45]

Hi guys. I stumbled across this thread while exploring the forum and discovered a problem I didn't even know I had (the missing slide notch). This thread is a gold mine! Great fixes, photos and descriptions. You guys rock! Thanks for sharing your knowledge and experience with us Kahr newbies. And thanks to gb6491 for assembling this info and Bawanna45cal for making it a sticky.