Hello, guys. A few months ago I bought a brand new Glock 19 Gen 5. I took it to the range only once and it did pretty well. I only shot like 200-250 full metal jacket bullets (Fiocchi 9x19 classic), and after range i cleaned it with Ballistol Oil. Some time ago I noticed that barrel appears to have gold/yellow/black lines inside. See the attached picture.
Is it normal? Is it rust or copper fouling? Would this affect function at all or just simply cosmetic?
Thanks much for your answers.
P.S. For cleaning I use nylon brush comes with Glock box. I also use Ballistol Oil with Hoppes 9 bore cleaner.
P.P.S. I'm not a native english speaker, sorry for any spelling mistakes.
Is it normal? Is it rust or copper fouling? Would this affect function at all or just simply cosmetic?
Thanks much for your answers.
P.S. For cleaning I use nylon brush comes with Glock box. I also use Ballistol Oil with Hoppes 9 bore cleaner.
P.P.S. I'm not a native english speaker, sorry for any spelling mistakes.
