The Breakthrough Cleans Copper Remover safely and effectively removes copper fouling and is 100% petroleum and ammonia free. Its 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 wont etch or harm the barrel.Product FeaturesGUN CLEANER: Safely & effectively remove copper & carbon accumulation while minimizing future build-up. Our formula is usable on all types of bore steel, won't etch or harm the barrel, & you can clean without experiencing harmful & offensive odors.GUN CLEANING SUPPLIES: Our copper remover gun cleaner will help keep your guns in peak condition & top-notch performance. It's petroleum-free & can be packed away with your firearm accessories, making it a handy addition to your gun cleaning kit.GUN CLEANING SOLUTION: Clean your guns efficiently while reducing the frequency between cleanings. Our 6 oz spray quickly breaks down debris, & is an easy & effective method for maintaining your firearms.SPRAY BORE CLEANER: A little goes a long way, & the spray can be used in conjunction with our military-grade solution as you clean down to the bare steel. Use one spritz, let it sit for a couple of minutes, & wipe the copper away.MADE IN THE USA.