CM9 Mag Floor Plate Help?

[hoghunter]

I am having issues with one of my mags. The 6 rd mag floorplate that came in the box with the CM9 slides right off the end of the magazine without having to depress the dimple. I have it set up just like the other two mags with the internal magazine base-lock with the dimple installed properly and the external floorplate slid right over top. I've taken it apart 10 times trying to figure out why this mag does not need the internal mag base-lock dimple depressed to slide right off. Any suggestions?

[TucsonMTB]

Give Kahr a call. They will be happy to replace your defective magazine or to ship you a replacement base and locking plate. As for their guidance. Either way you win.

Alternatively, you can try to deepen the dimple so that it catches better, but that could be tricky. If you have enough other mags to use, let Kahr help.

[RogerP9fan]

I am having issues with one of my mags. The 6 rd mag floorplate that came in the box with the CM9 slides right off the end of the magazine without having to depress the dimple. I have it set up just like the other two mags with the internal magazine base-lock with the dimple installed properly and the external floorplate slid right over top. I've taken it apart 10 times trying to figure out why this mag does not need the internal mag base-lock dimple depressed to slide right off. Any suggestions?I have the same exact problem with one of my CM9 mags. BTW, do you go hoghunting with your CM9? Or would you prefer a .40 or 10mm?

[hoghunter]

Give Kahr a call. They will be happy to replace your defective magazine or to ship you a replacement base and locking plate. As for their guidance. Either way you win.

Alternatively, you can try to deepen the dimple so that it catches better, but that could be tricky. If you have enough other mags to use, let Kahr help.

Tucson,
Thanks. I was leaning towards just calling Kahr. I can always try to deepen the dimple as a test.

[hoghunter]

I have the same exact problem with one of my CM9 mags. BTW, do you go hoghunting with your CM9? Or would you prefer a .40 or 10mm?

Neither- I use a Mathews Drenalin LD Bow to hunt hogs. What did you do on the mag issue? Did you call Kahr?

[BEARDOG]

If you slightly bend the end of the lock up a little it will be able to catch the edge of the mag body and stay locked. That's what I did to mine anyway as the lock would slide off with the floorplate. Maybe you have some other problem???

[TucsonMTB]

Tucson,
Thanks. I was leaning towards just calling Kahr. I can always try to deepen the dimple as a test.
Actually, BEARDOG's suggestion sounds easier than reworking the dimple. Not having experienced this exact problem, I will be interested to hear if his suggestion also works for you.


If you slightly bend the end of the lock up a little it will be able to catch the edge of the mag body and stay locked. That's what I did to mine anyway as the lock would slide off with the floorplate. Maybe you have some other problem???

[hoghunter]

If you slightly bend the end of the lock up a little it will be able to catch the edge of the mag body and stay locked. That's what I did to mine anyway as the lock would slide off with the floorplate. Maybe you have some other problem???

BEARDOG- I am gonna try this first. Good idea. Thanks. I won't be able to do it until tomorrow but I will let everyone know how it goes.

[RogerP9fan]

BEARDOG- I am gonna try this first. Good idea. Thanks. I won't be able to do it until tomorrow but I will let everyone know how it goes.Good luck hoghunter. I've learned alot here too from the helpful members.
BTW, I think I answered my own question regarding which pistol round has the best ballistic pig knock down power.

[Ressom]

You may also want to try to pinch the lips of the baseplate that secure it to the mag body. That worked for my magazines.

[hoghunter]

I bent the mag lock in the direction of the magazine, which is the direction it should have worked- but it did not. The base still slid off the mag. I went ahead and bent the mag lock towards the base plate and it worked?? Don't ask me why- doesn't seem to make any sense. The base plate still slides a little more than the other 2 mags I have but does not even come close to coming off. I may still call Kahr and see if I can get a base plate and mag lock. But in the meantime I think this is going to work.

[TucsonMTB]

Good to hear that you got it working. When you tell them it fell apart so easily new out of the box, I'm pretty sure Kahr will come through for you.

If they send a complete magazine, they will want the old mag back. No biggie. Personally, I would want a new magazine in case there is some unnoticed fitting problem with the base, but I have spares and would not be inconvenienced by sending in the original culprit.

[hoghunter]

Good to hear that you got it working. When you tell them it fell apart so easily new out of the box, I'm pretty sure Kahr will come through for you.

If they send a complete magazine, they will want the old mag back. No biggie. Personally, I would want a new magazine in case there is some unnoticed fitting problem with the base, but I have spares and would not be inconvenienced by sending in the original culprit.

Agree- but I spent the time sanding the follower to get it right so I may just hold on to it and see if it works for me. Someone on another thread asked a good question. If the follower does not cross the mag window until after you fire the second round in a 6 rd mag (4 rounds left in the mag), then why would there be nose dives on the 2 round in the mag. The second round is actually #5 of 6 in the mag. If the nose dives or FTF issues happen right after firing the first round (in a 6 rd mag) why would the mag release/follower have anything to do with it? Hope all that makes sense. To explain better. Load a 6 rd mag. Fire one shot, gun jams with nose dive or FTF before firing the second shot. The follower should not even come into play until after firing that second shot, correct?

[TucsonMTB]

Agree- but I spent the time sanding the follower to get it right so I may just hold on to it and see if it works for me. Someone on another thread asked a good question. If the follower does not cross the mag window until after you fire the second round in a 6 rd mag (4 rounds left in the mag), then why would there be nose dives on the 2 round in the mag. The second round is actually #5 of 6 in the mag. If the nose dives or FTF issues happen right after firing the first round (in a 6 rd mag) why would the mag release/follower have anything to do with it? Hope all that makes sense. To explain better. Load a 6 rd mag. Fire one shot, gun jams with nose dive or FTF before firing the second shot. The follower should not even come into play until after firing that second shot, correct?
Yep! Shooting to see if your follower modification worked out before giving up the magazine would be clever.

My Kahr is PM40, so the timing of the cross may be different. However, the opportunity for interference presents itself as the round originally loaded as second from the top is being fed and the top of the follower hits some part of the catch.

It has been a while, but as I recall, starting with a fully loaded magazine and one in the chamber, for me the behavior was fire the round in the chamber get a normal feed. Fire the next round and experience a miss-feed.

Just now, with a fully loaded magazine in hand I pushed out the first round by hand. There was no visible possibility of interference with follower. Then I pushed the second round out slowly. As the round was about to pop out of the feed lips, the round under it rose enough that I could see the top of the follower just entering the slot in the mag where the catch engages. I suspect that little bump is enough to slow the round as it tries to rise up in front of the breach face and get behind the extractor.

When it does not get high enough I would experience either a "nose dive" into the ramp or even a three point jam when the nose moved up the ramp and hit the inside of the barrel hood. That was an unpleasant jamb!

All that is history now for me. But, in addition to sanding the followers, I have many more rounds through both of my PM40 pistols and both are much smoother and freer running now, so the mag catch issue may have been only part of the problem.

I dunno . . . :rolleyes:

[RogerP9fan]

Neither- I use a Mathews Drenalin LD Bow to hunt hogs. What did you do on the mag issue? Did you call Kahr?One of my 3 mags does this. Thusfar, I make sure I don't carry that one. This thread has helped me greatly. As far as hog hunting goes...do you carry a Glock 20 on your side just in case they start hunting you?

[JFootin]

Think you could drop this one with an arrow?

http://i1230.photobucket.com/albums/ee486/John_England/MonsterPig.jpg

[Brittanyman]

I had the same problem with the 6 round mag that came with my CM9. I tired deeping the dimple with a punch and bending the floor plate, but had no success. I call Kahr and they told me to gently squeeze the lips of the magazine body where the base plate slides. It did the trick. Since then I've bought to 7 round mags and another 6 rounder. They all function well and I have not problem with the mag floor plate sliding.

[jocko]

Agree- but I spent the time sanding the follower to get it right so I may just hold on to it and see if it works for me. Someone on another thread asked a good question. If the follower does not cross the mag window until after you fire the second round in a 6 rd mag (4 rounds left in the mag), then why would there be nose dives on the 2 round in the mag. The second round is actually #5 of 6 in the mag. If the nose dives or FTF issues happen right after firing the first round (in a 6 rd mag) why would the mag release/follower have anything to do with it? Hope all that makes sense. To explain better. Load a 6 rd mag. Fire one shot, gun jams with nose dive or FTF before firing the second shot. The follower should not even come into play until after firing that second shot, correct?

a loaded 6 round magaazine and then racking that first round in the chamber u are not down to 5 loaded rounds, round 2or 3 will put that follower in the mag cut out window. If that follower is held up the sligthtest by the mag release button it throws the complete loading timing sequence out of whack. I am trying to underswtand what your saying and I think we are on the same page to. Just so easy to check this out by taking the slide off inserting a empty mag tube in thegun and then slowly withthe mga springon the bottom of the follower insert it o the open mag tube and slowly pushing upward, It shouold go right to the top withg zero resistrance and if you have any resistance it willhave tobe in that mag tube cut out and the follower going past that cut out and hitting on that magazine release button. I don't think it takes muchto upset the timing of the feeding either Once u get past the mag tube opeing, and if u still get ftf issues then it is not the magaine folloiwer doing anything wrong.

[hoghunter]

a loaded 6 round magaazine and then racking that first round in the chamber u are not down to 5 loaded rounds, round 2or 3 will put that follower in the mag cut out window. If that follower is held up the sligthtest by the mag release button it throws the complete loading timing sequence out of whack. I am trying to underswtand what your saying and I think we are on the same page to. Just so easy to check this out by taking the slide off inserting a empty mag tube in thegun and then slowly withthe mga springon the bottom of the follower insert it o the open mag tube and slowly pushing upward, It shouold go right to the top withg zero resistrance and if you have any resistance it willhave tobe in that mag tube cut out and the follower going past that cut out and hitting on that magazine release button. I don't think it takes muchto upset the timing of the feeding either Once u get past the mag tube opeing, and if u still get ftf issues then it is not the magaine folloiwer doing anything wrong.

Jocko,
I did exactly as you recommended with taking the spring and follower out, inserting the mag body and then slowly pushing the follower and spring upwards to test resistance. I did have resistance during my initial range visit so I sanded the followers down to where I got no resistance whatsoever. Even after doing this I got those nosedive issues I outlined on my other thread. The CM9 along with the 3 mags are on the way to Kahr via FedEx. I really appreciate all of your help in trying to get the Cm9 right. I have followed all of the advice but I am still getting multiple nosedive issues. Let's see what Kahr can do to get that CM9 up and running 100%. Do you have any idea what else could be the issue? I am using good quality Speer Lawman 115gr so who knows?