Hey everyone! Wow, it's been a while since I've posted as all of my FAQs are answered before I ask them haha. But anyways, I have a P226 and I noticed the top flat part of my barrel is starting to turn silver. Is this a common occurrence? Should I have any concern with the wear? My slide seems to be unaffected and I would hope it would continue to be that way. Btw, I clean/lube my gun after every use with CLR. Thanks!