CM9-Jams, sometimes won't chamber all the way

[scope422]

This is my first Kahr and I'm just about reaching the 200 round mark, at about 170 now. I had this occur once at about my 20th round through the gun. Then it was fine for the next 100 rounds or so. Now the last 50 its happened about 10 times. Almost always occurs on the last round but have had it 2-3 times in the middle of a magazine as well. Problem is, sometimes the round won't chamber all the way. It seems the base of the bullet is just entering the extractor on the face of the bolt and jams there. Its almost like its on too steep of an angle to slide into the extractor claw. Not sure??? I am shooting the regular 6 round magazine. The follower is not broken and the spring is correctly installed in the magazine. I can hit the back of the slide forward and it will drop it into the chamber and fire but I only tried that a couple of times, usually just clear it the right way and rechamber from the magazine. Has done this with Winchester 115gr fmj and American Eagle 115gr fmj. I know I'm still not broken in yet all the way but it seems to be getting worse rather then better. I saw a few posts in here mentioning similar jams but can't seem to find a good explanation as to what's happening. I can duplicate the position it gets stuck in if I drop the slide down slowly on a live round from the magazine, it will catch in this position.

I'm still gonna run another 100 rounds through it but is there anything to polish or check for this? Maybe recoil spring or is it catching on the extractor? Angle coming out of the magazine? Why is it usually the last round? I love this gun and I'm not judging its performance till I break it in all the way.

Anyone else see this?

Can't post photos on here but you can see them here:

http://www.flickr.com/photos/1161357...7640400650104/

[jocko]

for sure releasing the slide slowly is not the way to load a kahr, so forget that scanario as that is not proper protocall.

What kind of ammo are u shooting that is casusing this??. Normally kaghrs feed raqmp is nicely polished but u can sure enhance it by repolishingg it to. Try polishing under the feed lips of the magazine to with some 600+ grip paper, One never knows and ur not huring a darn thing. If it moves---smooth it. I am assuing ur havng this issue with the 6 round flush fit magazine?????.

What u can do to testout is go to wolffs gunsprings.com and order off the kahr PM9 parts their outter recoil spring. that is allu need. that spring is interchangeable with your cm9. Then I would consider looking at their 5% more strength magazine springs 6 round for your kahr. It could be that at that last round thatis the weakest time for that mag spring to be doing its job, that extra 5% more power might just get that round up there faster to feed propery. Again that certaibnly is not gonna hurt anything either.

Being the followr is OK check to see if any of the rounds might be hitting on the insdie of the slide lock lever, This will trow that round off just enough to screw things up. More than likely ur OK there but eaqsy to check. See the kahr tect secion and read the propper prep thread. Some dandy tips to check out..

keep us posted.

[deadeye]

Just as a side note, my AR15 that had been flawless started doing the same thing after I bought a new Magpul 20 round mag. Wouldn't feed right or lock open after the last round. Did what jocko just suggested - polished the follower and cured it completely. Even Magpul has a bummer once in a while.

[GLOCKROCKER]

Hey Jocko, just curious, how many little red squiggly lines popped up as you typed that response?

[codegeek]

Here's a silly question... Did you lube her up good? How about hand racking the slide a gazillion times. I know those things made a world of difference with mine.

Sent from my SM-P600 using Tapatalk

[Tinman507]

Hey Jocko, just curious, how many little red squiggly lines popped up as you typed that response?

[scope422]

I have been reading these boards for awhile now, even before I picked up my CM. I racked the slide a bunch of times before I fired it. Followed the prep guide and lube guide. I did clean it and lube it very well, 3 times already. I am familiar with releasing the slide with the slide lock, it does work every time. As a matter of fact, it chambers fine when I slingshot it too. I just mentioned letting it down slow to describe what the jam looks like when it occurs. Thats why I mentioned maybe the recoil spring or could be weak ammo, makes sense, not enough slide travel???. Seemed to occur more with American eagle ammo then winchester. When I was at the range I did take the mag spring out and gave it a little stretch then put it back in. I ran about a half dozen mags with just 2 rounds loaded and it seemed to work but I need to shoot it more to tell if that helped. Will test some more today. I'm at the mercy of the gun shop as to what ammo I can shoot, will try to find some 124's today.

[muggsy]

Hey Jocko, just curious, how many little red squiggly lines popped up as you typed that response?

Jocko has never been one to stand on formality. He considers his spelling much like a hand grenade. Close is good enough. I have in my possession a good supply of Jocko decoder rings that I'm willing to part with for a nominal fee to those of you who are having problems with your Kahr pistol. Unfortunately the rings seem to be selling like hotcakes of late and the price may be going up. It's the law of supply and demand.

[sas PM9]

Hey Jocko, just curious, how many little red squiggly lines popped up as you typed that response?

GR:

Step lightly Glockrocker or a horse/sheep head may be sent your way.

-steve

[GLOCKROCKER]

Acknowledged!

[Bawanna]

Nobody has more horse heads than me but a sheep head might be a nice change of pace especially if it's a cute sheep ya know.

[Txmansa]

I am new to the Board, Kahr's, and the CM9. I am soaking up the knowledge on this Board - it's awesome. I have not experieced the Op's problem, but took a look at the Wolff site anyway. Jocko, are you recommending their 18lb factory standard or their 20.5 lb recoil spring? Again thanks for the wealth of knowledge.

[jocko]

In the 9mm the 18#is fine, but for the cost to buy, try one of each or more. I would srongly recommend the 20.5# for the 40 cal PM or cm series, as kahr uses thee same ecoil poundage in the 40 and 9mm and there is a big difference in recoil as most 40 owners will tell you. I like the 20.5 but u gotta remember sme of this ovber the counter ammo stuff althugh good is a tad under powered comapred to puree defense ammo, so sometimes for the first 200+ rounds on a 20.5# recoil spring u "might" encounter lack of last round the slide staying open. I say might, for I never had this happen to my PMJ9. If ur gonna order those from wolffs definitely get the 5# striker spring. It drops right in, makes a super nice mod and the trigger tgravel doesn't change, only thepoundage does. Just sayin

[jocko]

thanks muggsd, glockrocker, ur on my list. saspm9 has evidkentley received a parcel for his wall mount. Just sayin.

fokk spell checker. who ever said they were totally correct either. If we had any real scholoras here, they wuld know that they belong on the glock forum for that forum is politically correcrt. Just sayin

GO DENVER

My condolances to Terry Bradshws loss of his dad to. I always like bradshow. he kinda reminded me of me A DICK. I bet Bradshaw never used spellecheck either, guy has been married a few times to. lived in a trailor after pro football. seeme dlike he got his plow cleaned after each divorce. Still to me a down to earth "dick".

her shold be on this forum. Just sayin

[berettabone]

In the 9mm the 18#is fine, but for the cost to buy, try one of each or more. I would srongly recommend the 20.5# for the 40 cal PM or cm series, as kahr uses thee same ecoil poundage in the 40 and 9mm and there is a big difference in recoil as most 40 owners will tell you. I like the 20.5 but u gotta remember sme of this ovber the counter ammo stuff althugh good is a tad under powered comapred to puree defense ammo, so sometimes for the first 200+ rounds on a 20.5# recoil spring u "might" encounter lack of last round the slide staying open. I say might, for I never had this happen to my PMJ9. If ur gonna order those from wolffs definitely get the 5# striker spring. It drops right in, makes a super nice mod and the trigger tgravel doesn't change, only thepoundage does. Just sayin

For a while there you had me, the first sentence was coherent...........