I wouldn't worry about it. As other have said, you will likely cause unnecessary wear trying to get your bore spotless. I use a bore snake for 99% of my bore cleaning and don't worry about a bit of copper here and there. I don't know that I've ever ran a seperate bore brush through my AR's...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.