I just bought brand new Karh P9 that I planned on using as my carry gun. The first 60 rounds through it ran perfectly. The next 300 rounds have been a nightmare. Right after firing the first 60 or so rounds the slide started sticking in the rear most position after firing a round. I can bump the rear of the slide with my hand and the gun will go into battery and will fire the next round. After almost EVERY round after that the slide sticks. I called Kahr and was asked what kind of ammo I was using. I told them it was all factory and NOT +P. I was told to try another brand and clean the gun. I did what they told me with the same results. I took the slide off and inspected it quite well and think I have found the problem. It appears the little ring that is machined on the barrel right in front of the chamber area is being peened by the slide as the slide travels rearward. There is an area both sides of the inside of the slide that have peen marks as well. When the pistol is unloaded and you manually pull back on the slide to where is stops if you give an extra pull you can feel a click as the slide comes back a bit further. At times the slide will stick when manually pulling it back. Has anyone had the same problem? I hate to have to send it in for repair but after running 300 or so rounds through it and still having the problem I am sure it must be returned for service. Any thoughts?