Hey guys, just picked up a NIB 19 gen 5 from my FFL today. Delivered from GT Dist. here in Florida. When doing the initial cleaning of the barrel, I noticed these white streaks that run from the chamber all the way to the crown. I've tried to clean it out with hoppes, balistol, copper remover, etc...wont budge. Almost looks like the barrel wasn't finished and was left in the white, or some how took an acid bath along the way. Every Glock I've had before the new barrel was like a mirror. This one is the funkiest factory barrel I've ever seen. What do you think? shoot it, or send it back?