Oil it with "Crosman Pellgun oil", "RWS OIL" or "Gamo Pellet gun oil" Wipe it down. DO NOT USE Household oil or 3-N-1 oil. They will damage the gun. Put a drop in the barrel and run a swab through the barrel. If it's a C02 gun then put a drop of oil where the C02 bottle fits into the gun and charge the gun. If it's a springer type of rifle, put a drop of oil in the oil hole in top of the rifle barrel or in the loading chamber. DON'T over oil the gun.
dismantle it oil any moving parts use a gun cleaning kit to remove any lead build up in the barrel, have some one show you that owns a gun or check youtube.com
Soak it it a lightweight oil.
Yes!
It would help if you stated the model.
you first begin by standing the gun on it's butt compress the barrel downward and loosen then remove the nut on the magizine and remove the forarm you then remove the barrel by getting a firm grip on the barrel and pull it off you can then remove the frictoin rings and spring
you'll have to take the gun apart to remove it.
You can't buy it, you have to convert it yourself.
Either don't touch the barrel or wear gloves. You can also wipe down the barrel after shooting with some Crosman pellgun oil on a rag after shooting.. Do not use regular oil it can get into the gun and ruin the seals. Only use Crosman pellgun or RWS oil. I believe Gamo also may have an air gun oil that is okay to use.
Oxidation of the steel of a gun barrel.
Best left to a qualified gun smith.
Water and aluminum foil can remove surface rust on the chrome of a gun. Steel wool can also be used to remove rust. It is advised to never use a oil to remove rust or to clean a gun.