The Breakthrough Clean Technologies 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 2 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.