Thoughts on the CM9 feed issues

[CJB]

I have had the 6th round feeding issue (nose-diving) from the beginning.

Well, you're the genius, and I'm just a guy who reads just a little better than Crayon Martins girl friend.

By cutting the magazine spring, you've only kicked the can down the road.

I find it amusing once again where a person will come on board, describe and issue inconsistantly, say how they've modified the pistol, pick apart the design, make direct or indirect reference to using questionable ammunition, etc etc and then ask for advice - after they're already stated their own case for the situtations conclusion.

Do you realize there are threads on this forum quite litereally making light parody of such situations. And ... I can see why.

And where does this all end up? First - there still exists an unresolved problem. Second - Kahr will say the gun was altered, possibly voiding their excellent warranty. Third - the person who had a problem goes away mad because of the undoing of their own devise. And, Fourth - said person goes on to spew the outrageousness of Kahr and how their firearms will suck until the end of time, all over the internet.

What have I missed here?

[CJB]

oh well... i guess i just have all wrong albert. You can cut your own spring as much as you want.

I am a *******. An illiterate one at that.

I did miss something. Character assasination.

Please continue, but do so without my advice, as you already know it all. I'm done with this thread. I'd rather go hang on the parody of this situation.

[D78999]

" I did miss something. Character assasination."


YOU are the one who started with the insults, twerp......I only "returned fire".

[D78999]

With (the magazine hanging low in the mag well) idea in mind, I would like to ask those reading this : how much additional distance can you push your mags upward, with the slide locked open, on YOUR CM9/ PM9 ? With my CM9, there is approximately an additional 0.052" of play.....or somewhat less than 1/16" (0.0625"). Quite a small amount, but in my pistol, it makes ALL the difference.

If I push the mag up (to close this dimension), while feeding the first round from a full magazine, the result is NO feed jamb. NO nose-diving round.....NO problem....EVERY TIME. If I don't, then the first round nose-dives (and jams) every time.

[D78999]

OK, one last post. I know that most of you don't care, don't believe me, or think I have committed some grand heresy - well fine. I'll share this last bit of information, in the hope that it will help someone else - and then be on my way.



The full magazine feed issue with my CM9 is now solved. Very simple, as I expected, the real root cause of the problem is excessive magazine spring pressure, which jams the last round too hard against the magazine lips. As a result, the first round out of a FULL magazine invariably would nose-dive and jam against the feed ramp. I found a temporary solution, simply by holding the magazine up in the feed well, by wrapping my little finger under the mag - while chambering the first round.

That, however, was not a final solution. I had already removed ONE full coil from the magazine spring, in hopes that this would reduce the excess spring pressure against the top round. It DID improve things, though it did not solve the problem completely. So, today I removed a 2ND coil from the mag spring. VOILA - PROBLEM SOLVED. I have tested my CM9 this afternoon, 120 times, 60 by hand racking the slide from the closed position.... and 60 by sling-shoting it from the locked open position. The ammo I used is the same as I fired yesterday, at the range - 125 grain truncated cone/ flat point. I used this ammo for test purposes because such a bullet shape is the most likely to give feed problems - in other words, a worse-case test. I also tested 30 times with my jacketed HP carry ammo. I will test at least 50 more cycles with the HP carry ammo, before the next time I get to the range. However, I can say, at this point, that the problem is solved. NOT ONE feed problem has occurred, since removing the 2nd mag spring coil. I now have NO need to lift up on the magazine - so all of my testing this afternoon has been done without that.

So, there it is. Believe it, don't believe it, whatever.....I don't care. I hope that someone, at some point, benefits from this information. After all, that is what this kind of forum is for, is it not ?

In the meantime, I have decided that I don't need the grief from arguing with certain people who won't deal with reality, for whatever reason.

So, goodbye. Moderators - feel free to delete my registration forthwith.

[jocko]

I sure spent alot o ftime trying to hlep u out and at no time di d I insult anything u did either. I do kind of take offense to ur attitude on this maybe your last post.although most of my suggestiosto you were not successful ones either, the cutting of the second coil was also suggested to you by me as sumpin to try, although not a fan of cutting mag coils in ur case it seems to work

Sometimes a fix can be found by circumventing the issue itself and doing something to offset it. Not a good way to do things but for some it works ok for them. Most al lthe forum members here that I read seemed to want to help you as berst possable, normaly when one cops an attitute it produces a reverse attitufe then it is all down hill after that.

If u walk with a limp in the left leg u can just shorten the right leg to even it out, and u can call it a fix but in reality the issue is still there but in disquise..

U got the gun runninbg right, glad for that,if u sodecide to leaveas you stated, then IMO u never really bel0onged here in the first place.

[scosgt]

Last year I ordered some mag springs from Kahr for my MK-9. The springs they sent were way too long, you could not possibly stuff them into the mags and load more than three rounds.
So I called Kahr, and they not only swore to me they sent the right springs, but they maintained that they are all the same!

So it is far from impossible that Kahr installed the wrong springs in his mags and his solution is actually the correct one.

[jocko]

Last year I ordered some mag springs from Kahr for my MK-9. The springs they sent were way too long, you could not possibly stuff them into the mags and load more than three rounds.
So I called Kahr, and they not only swore to me they sent the right springs, but they maintained that they are all the same!

So it is far from impossible that Kahr installed the wrong springs in his mags and his solution is actually the correct one.

correct in ur assmption to. but we really don't know that for sure. We have read befrore of 7 rund mags springs bein shortened a and good results.

All kahr magazines come to them fully assembled from the vendor, Anything can happen..

[codegeek]

I am glad you found it. Often times, different solutions work for different people. I have an extra follower and seven round spring. It would be interesting to try your theory on my CW9.

No need to take off. This forum doesn't have the same ambiance as some of the better forums, but there are good people here (with the appropriate bell curve number of :censored.

[Bawanna]

Wow! How did I miss all this when things have been so boring of late, totally missed it.

We're done here.