Kel-Tec customer service is top notch.  I recently purchased a PF9 that had problems feeding rounds.  It would jam rounds and sometimes kick the mag out after each shot.  I contacted customer service and they paid for me to ship the pistol back to them, they replaced the mag release, ejector,  and a couple other things as well as re-testing the action of the gun.  It was then sent back to me and has worked perfectly since.  All free of charge!  That's the way to keep customers!