I have had my Kel Tec PF9 for a few years now, and haven't had an ounce of trouble with it. I've shot it well and it continues to be one of my favorite concealed carry guns. That was until a few weeks ago, I started to have misfeeds.
As you can see, the chambered round would go off well, but the case would remain in the chamber as the next round try to come up through the magazine. My initial thought was that it was ammunition. After trying a couple different rounds, I still continued to have the same problem. Then I started to think it may be the extractor. It did seem as if the extractor was just slipping off the spent round, leaving it behind.
I went back to the house, jumped on Google and found the solution! Kel Tec PF9's have been having extractor problems, and a lot of people said that a replacement extractor fixed their troubles. I had a great experience with Kel Tec customer service. After a couple back and forth comments on a support ticket, the new extractor was on its way! The real work started after I received the new extractor... The bolt that holds the extractor in place, along with the firing pin, was TOUGH!! It was a T11 Torx bit. I grabbed the proper size, and STRIP... This lead me to try different sizes torx, common and phillips head screwdrivers, and nothing. I even went to Ace Hardware and bought a screw extractor kit, meant to remove a stripped screw, to no avail. Lastly, I added a little PB Blaster, then used a dremel tool and small disc to cut a slot into the screw head. I barely had enough space to get the disc to the screw head without hitting the slide, but managed to get a decent slot cut into the screw. The moment of truth... AND SUCCESS! The screw came out!
Above you can see the empty slide, extractor springs, extractor, and firing pin. I immediately started comparing the new extractor spring with the old, and was surprised of the difference.
The new extractor spring is shown on the bottom. The extractors themselves looked the same. Thankfully a new screw was also sent. This appeared to be the same as well, but when reinstalling I noticed it felt much harder. The surprising difference was the long extractor spring itself. Reassembling was a piece of cake and before I knew it, I was ready to hit the range again!
So back to the range I went, confident that it was going to run like a champ. I stepped up the line, put a round in the chamber, sqeezed a round off.... and JAM!!! I COULDN'T BELIEVE IT!
Luckily for me, a friend of mine was at the range with me. He asked me one simple question that floored me... "Have you oiled your magazines lately?"
Umm, well no. I've never oiled my pistol magazines. I'm not a 1000 round a month kind of shooter, and never have been, but I've shot quite a bit in my life, never once have I oiled my mags or learned to oil my mags. But what the heck. I pulled out my trust Lucas Gun Oil and let it rip!
I only oiled a couple places in each magazine, and very little oil. I worked a few rounds in and out of the mags, then the moment of truth. I loaded two full magazines, and back to the firing line I went. And guess what happened? NOT A SINGLE MISFEED!!! I've shot a couple hundred rounds through it now, and still not one misfeed! I couldn't believe it. Such a simple drop of Lucas Gun Oil and the whole situation would have been, and was, remedied!
So moral of the story, Kel Tec PF9 support is great, clean and oil your magazines, and Lucas Gun Oil is amazing!
Jack of All Trades, Master of None