Originally Posted by
spyder
^ This is the easiest and most permanent way to get your plastic black. Go get a pan big enough to stuff your pieces in, and bring the water to a boil. Pour whichever color dye in that you want, bring the water just down from a boil and dip your pieces in. I used a lot of dye on my ACR parts when I did them (one gallon pan with almost a 1/2 cup of dye which was overkill). I used RIT dye that you find at walmart in the detergent section, the liquid stuff in the 4 oz or whatever tiny size bottle it was in.
You can't go wrong with Hk. Now get a UMP conversion kit and put it together.