Hey again, I recently went out to my parents and ran 300 rounds of Winchester NATO through the ppq I just got. It handled well. No issues while firing. But that night when I went to clean it I found brass shavings EVERYWHERE inside it. It's to the point that I am going to completely disassemble it with the help of videos to ensure the flakes dont cause any issues in the future. I emailed walther and they said that a small amount of flakes was ok, but this was by no means a small amount. Upon insisting that I was uncomfortable with the amount of particles inside the pistol the rep said they would talk to a technician on Monday. I wish I thought to get pictures but diddnt. So my question to you guys is, is this normal, and I'm over reacting? Any thoughts on the cause?