Yes, touching a gun can potentially contribute to rusting if the gun is not properly cleaned and maintained afterwards. The oils and salts from skin contact can transfer onto the gun's surface, leading to corrosion over time. It's important to regularly clean and oil your firearm to prevent rust.
depends on which gun.
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.
Cost will change depending on how much work is done, or how much of the gun is painted. Typical cost of a simple 2 color fade over a full gun is around $250-300
It cost 10,800,000
$200 for a BB gun
Blue is a type of rust finish
Oxidation of the steel of a gun barrel.
We need to know which gun. Prices vary.
It is $35.54!
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You will have to describe it in more detail.