Breakthrough has made a biodegradable formula that actually removes copper and helps prevent copper build up without barrel etching or odors. This formula was created to be good for your barrel and the environment at the same time giving you a clean barrel and not using ammonia or petroleum products from Breakthrough Technologies.

Features:2 oz.;Pump spray bottle.;Quickly breaks down copper fouling and minimizes future copper build up.;Safe on bore steel.;Won't etch or harm barrels.