KG-4 Gun Oil -
KG-4 is the lubricant and protectant used to coat the rifle bore after you've cleaned it with KG-1 or KG-12 and flushed it with KG-3. Moisten a patch with KG-4 and run it back and forth in the bore before storing your rifle. When you plan to shoot your rifle, run a dry patch on a tight fitting jag down the bore to remove excess oil.
See the rest of the KG product line at our KG Gun Cleaning Home Page