Breakthrough® Clean's Copper Remover safely and effectively removes copper fouling and is 100% petroleum and ammonia-free. It's virtually odorless and biodegradable formula easily removes copper fouling and minimizes future copper build-up without giving off any harmful or strong offensive odors found in other copper removers. Usable on all types of bore steel and won't etch or harm the barrel.

•  Quickly breaks down copper fouling and minimizes future copper build-up
•  100% ammonia free - User safe and eco-friendly
•  Safe on bore steel - Won't etch or harm barrels
•  Virtually odorless and is biodegradable and petroleum-free
•  Made in the USA