That may be my next project Im on my second firing pin. I contacted Kel tec about sending me a new slide. Im thinking that the breach face was not milled correctly therefore the firing pin does not extend far enough on some bullets for proper ignition. If I cound get my money back at this point I would be done with all this.Picatinny_Pete said:Hi,
I had a friend who had a similar ignition problem to yours, and I did a fluff and buff which included the firing pin channel, polishing the exterior of the firing pin and re-contouring the nose of of the firing pin which fixed his ignition problem.
His firing pin had a flat on the nose left over from CNC machining. Chucking the pin into a drill press and carefully using a needle file and 200, then 400 & 600 grit emery paper I was able to round the profile of the nose without changing the overall length (shown above.) The firing pin having less resistance and a smaller surface area on the nose ignited the primers. The trick was to use a rounded profile so the pin would not pierce the primer.
Might as well call KT and order a new spring.kmunch said:I removed the firing pin spring. streched it then trimmed it back to a 16th shorter over all.
It ws the firing ptn spring that i shortened, i have a new firing pin spring pin on hand. Yesterday I sent keltec the barrel and slide for replacment I have a new hammer spring on hand for replacement. Is the hammer spring hard to replace?TxCajun said:What rc said... Stretching a spring is never a solution but is almost always eventually a problem. Any gain will be temporary. Also, as rc said, I'd change the hammer spring before sending it back. KT can have a spring at your door in several days. Do not over-stretch it when installing. Sending it back for service will take a month or two so a new hammer spring is worth a try. Also, the hammer block system on the gun makes it totally drop safe. You could slightly shorten the fp spring if that helps, but, with quality ammunition, the gun should work with unmodified springs, assuming they are to spec.
This video should help;Is the hammer spring hard to replace?