I was having problems with failures to eject. I emailed Kel-Tec and they sent me a new extractor, spring and bolt. I performed a major polishing of the feed ramp and inside the chamber. Hand cycling several mags worth if ammo and every thing appears to be working smoothly. I'll have time this weekend to run some live rounds thru it. Hope for the best, but plan for the worst. By the way, this is my 6th Kel-Tec pistol.