I had to send my CW9 back to Kahr for a number of problems. I received it a few weeks ago and finally got a chance to shoot it today. It fed 265 rounds of every type 9mm I had with no problems. I'm going to put one more range trip on it, then it goes into CCW duty. I put the sandpaper to the backstrap too. Those nubs need to come down some. I also had them put a set of Trijicons on it. I am pleased with Kahr's customer service.