Revell is the Brand that make the Glow Paint I have, just watch out using it as it can give you an Evil Headache (took several days to go after putting the effects into my Ghost ship), places like the Works do cheap flourescent neons too.
If they ever rep the Langdon Beretta we'd be laughing as it's got Irons that can interchange with an Optic mount as an Optic will definately fix the issue, would love an engraved custom one thats for sure.