I like the idea but to make it less colorful and childish perhaps there could be set colors of maybe three for all weapons to make it realistic, there would be a military, Spec-Ops, Base coloration.

Military would have your basic, Nato colored Clips, maybe a greenish stock and so on.

Spec-Ops would be a night time/raid team design. Black and grey coloration only like grey clips, black stock and handle.

Base would the basic design that comes with a weapon.


Minerals would be combined in use to choose the prefered coloration and have it at a set cost of 1-5k to change the color "if the selected minerals are in inventory"

I left the base color in it so if someone wants to switch back they would have the option to. This would give people the color change without the flash of toy guns perhaps.

If have time maybe you could try this on a weapon?