Recently I found that my BCM 9" .300 Blackout barrel, a 9" fluted version had suddenly lost it's precision or accuracy. I fellow shooter brought over his borescope and we found some unusual looking surface. So pictures in an email to BCM resulted in a request from BCM to get a look at the barrel. Nothing to lose and curious on my part I sent it in to their tech. Upon their inspection they found the chrome to be defective and IMMEDIATELY forwarded me a new barrel.

Old barrel :

This was far more than I expected and extremely generous on their part.

Thank you BCM, and please fellow shooter's support quality companies.