KG-2 Bore Polish -
This is a fine abrasive liquid designed to polish the bore... Its kind of like bore lapping, but much less risky and critical. After making sure your barrel is totally clean... No fouling of ANY sort (copper, carbon, etc), use KG-2 to polish the bore. Shake it well then saturate a patch and push it back and forth in the bore with a tight fitting jag. Another method is to wrap the KG-2 saturated patch around a bore brush and push it back and forth in the bore to polish with reach into the rifling. On barrels where copper build-up is quick, polishing with KG-2 can reduce the speed of copper build-up.
See the rest of the KG product line at our KG Gun Cleaning Home Page