Gun Porn: Fixing a PF9 edition

At the bidet shoot this year, which I have yet to write about (bad blogger, no cookie), I had a very disturbing failure with my 4 year old Keltec PF9.

I was taking some videos for a future purpose and I had a failure to extract on the first round I’d shot that day out of the PF9:

So I turned the camera off, dropped the magazine, and racked the slide several times. The video I was shooting required 7 rounds, so I topped off the magazine before reinserting it and dropping the slide. Then this happened (NSFW language):

That cursing at the end was because after dropping the magazine, I couldn’t rack the slide. The gun was completely locked up with a live round in the chamber and no way for me to get it out. I bought this PF9 new to replace a P3AT in 2010. I have put about 800 rounds through it, I think, and this was the first time I’ve had anything like this happen to any of my guns. But, it’s a blogger shoot, so someone has to break something. I put the magazine in my pocket, cased the gun, and finished up the rest of the day.

When I got home, I unloaded the magazine….and there were 7 rounds in it. I was very, very confused. How was that possible? I had 7 rounds in the magazine when I racked the slide and had the failure to fire and subsequent lockup. So I took my smartphone and used it’s camera to look down the barrel….where I saw an empty shell casing. Yay for no live round in the chamber!

So by this time I think I’ve figured out what happened: While shooting these videos, I had 7 or 8 pistols lined up on a railroad tie loaded and ready to go. I was shooting lacquer coated Wolf 9mm. It was 95 degrees and there was no shade, and this was at about 2pm. The PF9 was the second to last in that line, so it had been sitting there for about 20 minutes. I suspect that the “melting lacquer” problem you hear about in AR’s shooting Wolf got me.

I take the pistol to the garage and use the nylon side of this hammer to beat the slide open. Problem solved, right?

Well, not exactly. See, when I inspected it to try to figure out what happened, I found this:
Keltec PF9 Breech Face

That gouge just above the extractor? It’s not supposed to be there. Now, I have no idea how long that’s been there but I’d never noticed it before. So with that, and the lockup, I called a friend of mine for some help. He said he had a box of parts that would probably fix my issues so I swung by and picked them up.

When I got home, I disassembled the PF9 before getting started:
IMG_4571

I tried to put the replacement slide on, but it wouldn’t quite fit:
IMG_4573

It was also a little bit too short for the PF9 frame:
IMG_4572

So I dug around my box of parts and found an extra frame. The new slide fit much better on the new frame:
IMG_4576

But I still had a problem. My old magazine wouldn’t fit in the frame:
IMG_4574

Luckily, there was a magazine in the box as well.
IMG_4575

And for good measure, I picked up a new holster as well. Pro-tip: The old holster would have worked, but most of the stickiness had worn off after 4 years.

In all seriousness, I’d been entertaining the idea of picking up a CM9 for a couple of years now. I literally called my FFL on the way home from the bidet shoot and had him order it for me. I took both pistols to the range last week and put about 80 rounds through each of them to check function. The PF9 actually performed better–easier to load, less muzzle flip, no malfs–but I think I can contribute that to having a worn magazine spring, finger extension, and unfamiliarity with the amount of travel in the CM9’s slide. I had several rounds go nose down and not feed correctly. They were all first rounds in the magazine and I release the slide from lock by pulling back just enough to disengage the slide stop. I’ve already ordered some Pearce Grip Extensions.

Also, Kahr is running a promotion right now where if you buy any of their 9mm pistols, they’ll send you a free magazine. I submitted mine electronically last Thursday and the magazine was in my mailbox on Monday—and there was a three day holiday weekend in the middle of that.

8 comments to Gun Porn: Fixing a PF9 edition

  • oddball

    And my Bersa Thunder 9 didn’t fail once, even when Roadkill shoot it! :p

  • I have 3 carry guns. Keltec P3AT, Kahr PM9 and Kimber UltraCarry.

    The only issue I’ve ever had with any one of them was with the Kimber. When new it didn’t like to feed the first round from the magazine without a little help. That issue entirely disappeared after the 200 round wear in.

  • roadkill

    Yay. I only broke the uzi this time.

  • snoopycomputer

    Fellow CM9er here. The manual actually says to not drop the slide from a slingshot, but to always use the slide release to drop the slide. Huh? I know. I have always pulled the slide to drop and never had an issue.
    On my fresh CM9 (and CW9), my break in procedure was to unload and triple check the gun, put on some gloves, pop a DVD in the player and rack the slide for a while. After that- took it to the range, lubed it wet w/ remoil and shot the recommended 200 rounds. Added more and more oil, keeping it wet- let the grit wear the fresh surfaces naturally. It seemed to work like a lazy man’s fluff-n-buff.
    Watch out when carrying your spare mag, the rounds like to be really nose-up, and a too-tight pouch can cause round 1 to fall out, or be pulled past the feed lips on mag extraction.
    That’s just been my mileage.

    Keep us posted on the CM9, and if you get the PF9 running again.

  • The_Jack

    You did the same thing when you fixed your grandfather’s axe.

  • Jason

    You’ve got to be kidding! What kind of idiot tries to put a Kahr slide on a Kel-Tec frame? And then tries to put a Kel-Tec mag in a Kahr frame. This article is full of all kinds of fail! Your family and friends actually let you have access to guns?!?!?!

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