Many thanks for the recommendation. It seems that this product is mainly available as aerosol cans. I'm interested in exploring an alternative that allows me to soak the BCG.Not sure about what’s best but Balistol has been removing carbon for a long time a has Hoppe’s #9.
https://ballistol.com/
Try soaking in simple CLR cleaner.I bought a used upper with a dirty bolt carrier group. It has lots of carbon build up. I wonder what is the best liquid solution to dissolve it off?
Try soaking in simple CLR cleaner.
Avoid scrapers as they can ruin the BCG.
https://www.youtube.com/watch?v=_WcF0hWDK6I