Painting over orange barrels

Anyone who's bought cheap airsoft guns off ebay or elsewhere has had to deal with this in the past: How do you get rid of that damn orange barrel or paint?

Blank finishes are pretty easy to fake with decent spraypaint, and polished metal can have orange paint sanded or scraped off and be re-polished... but metallic ABS finishes are a pain in the butt.

Anyone found a good touch-up paint for that? Nice chrome or nickel finish that doesn't also gunk things up, fill in gaps, etc?

try krylon paint. It bonds to plastic and does not need a primer or prep work besides a clean surface.
here is the link.
http://www.krylon.com/main/product_template.cfm?levelid=5&sub_levelid=10&content=product_list