I had a similar problem with my P45. You might try other brands of ammo. Some people report that the CCI primers are harder than some of the others. Federal is reported to be the softest. Keep track of all rounds fired and the number of failures in case you need to contact Kahr. Of course I am of the mindset that a quality pistol should function with most commercially available ammo. I have never experienced problems with Blazer ammo in any of my other five 45s. Why should my Kahr be any different? I was experiencing ~ 5% light primer strikes with all (7) brands of ammo that I tried. So I knew it wasn't just the ammo. I asked Kahr to send a new striker and striker spring and the problem has since gone away.
Another thing you will want to do (I did this as part of troubleshooting my pistol) is detail strip the slide assembly and check for mung. Some people report small metal chips, shaved brass, or plain old grunge in the striker channel. There is a great sticky over on the Glock Talk forum that shows you how strip it. Let me know if you need help finding the information.