Bore Tech BTCE25016: Bore Tech\'s Eliminator Bore Cleaner is barrel-safe, non-hazardous, odor-free, and biodegradable. It has the ability to cut through the layers of carbon and copper fouling that has accumulated on the barrel\'s wall. This cleaner features a rust preventative which shields and conditions the firearm bore. It is ideal for steel, stainless steel, or lined barrels.