Hey all. I've read this to be a somewhat common issue with PM40's and maybe some other small Kahr's. I've carried a PM40 for 13 years now. I sent mine back for barrel peening and the feed ramp striking the followers which resulted in them breaking. They ended up pretty much replacing the entire gun as mine was an early model and replacement parts were not available.
With this new gun I'm have a tough time with the 6 round extended magazine. The top 2 rounds like to nose dive into the feed ramp while shooting. The flush mags work fine. I understand that pulling back on the bottom of the mag with your grip can tilt the mag slightly in the mag well causing the front of the mag to be a little low on the feed ramp. I think that's a horse crap excuse. It shouldn't matter. I have large hands. I can't hold the gun with that extended magazine without some pressure being put on it. The gun should work with the mag inserted, period. I've alway's been very pleased with Kahr's support and will follow their recommendations with this issue.
I was just curious what the board has determined with the extended mag on PM40's. I can pocket carry with that magazine easily but I'm obviously not going to do it when the first follow up shot nose dives into the feed ramp jamming the gun. I've also noticed some pretty hard dents on the front of the followers right next to the metal tab that presses up on the slide lock. None of the followers have broken but all the mags have some pretty decent hits on the front of the follower from what I'm guessing is the feed ramp.