I had a some scratches on the inside of my fibur barrel from running an over sized rubber squeegee through the barrel. Called deadlywinds and they told me to send the barrel in to see if they could fix it. Sent the barrel in and a week later I got back a brand new fibur barrel. Great customer service and great turn around time, if you ever have any problems with your deadlywind barrel, they will defiantly take care of you.