New PM9 Issues

[mightymouse]

Awesome pics. Thanks!

I might have removed a tad bit too much metal. Only way to know for sure is to fire it. I will take it to the range later this week and see.

The reason I may have removed to much: I loaded it with Gold Dots and with the slide off there is sufficient clearance now. I hand cycled it and it loaded and ejected fine and the slide locked open after the last round was manually ejected.

Before I altered the slide stop lever, upon pressing the magazine release button, the magazine smartly popped right out under the magazine spring pressure. However, now, if I load an empty magazine with the slide closed and rack the slide, it does not lock open. As a matter of fact, the magazine wont drop free either when the magazine release button is pressed. What is happening is that the magazine follower (the area that contacts the slide release--or lock in this case) moves just enough and the part I altered is smaller and highly polished so that the follower slips to the side of the slide release and wedges in there not pushing up on the slide release to lock the slide back, but instead resting next to it. Hope I explained that right!

As stated though, when loading a full magazine, it appears to function right when cycling by hand and does lock the slide back. It only wedges in there when loading an empty magazine and racking the slide.

That may not be a problem at all. Like I stated earlier, I love this pistol, and if I need it to function 100% reliably. If that means altering it to where the slide does not lock back on the last round, I can live with that. I cant live with premature slide lock backs.

If I'm reading this right, perhaps too much material was removed ?? I know mine will still lock back with empty mag and after last shot. No wedgies so far like you described. For all I know I could have left much more metal than I did and still have it function 100%. Another slide stop lever might be in order. I haven't been able to find the MIM, metal injection molded unit (CM9) on Kahr's part list, but I'd think it a cheaper alternative to the machined PM9 piece. Who knows, a new one might cycle fine with no mods. I know If you call Kahr customer service and mention the premature slide lock, at least in the past they would just send you a new one.

[jocko]

I think the MIM and PM9 forged slide stops are the same price, either will fit, I think the cw series will also fit..

[ricklee4570]

Update:

I went out yesterday.

100 rounds of WWB=100% reliability

20 rounds of Speer Gold Dot=100% reliability

50 rounds of Hornady Critical Defense=100% reliability

I then shot a hodge podge of misc. extra ammo I had laying around, 100% reliability.

Right before leaving the range I tried the 7 round magazine again and experienced the nose dives again. Im giving up on the 7 rounder!

I ordered two more 6 round mags from Cheaper than Dirt and will make the slight follower modification when I recieve them and they should be good to go.

I really like this little gun. I couldnt tell much difference in recoil between any of the rounds, even the +P loads. Very managable!

[JimBianchi]

My MK9 also had issues with 7 and 8rd mags, but only under specific circumstances. They make great range mags, but I only carry 6rd mags for CCW.

[bamaman]

I had to do the same thing with my CW9 so it would feed the gold dots. Worked like a charm. Great info on this site.