Things You'll Need
Instructions
Apply gun oil to the rusted areas of the bayonet with a cloth.
Leave the oil on for several hours, or overnight. During this time, the oil will penetrate the rust, making it softer and easier to remove.
Scrub off the rust using a fine steel wool pad. Use gentle motions, so as not to scratch the metal. In some places the metal maybe fragile, because of the heavy rust. Only scrub the parts of the bayonet that are rusty.
Apply more gun oil to the bayonet, once all the rust is gone. Gun oil provides a protective barrier to the moisture that leads to the rusting of the metal.