Painting an fx stock?

"Jedediah"has any one painted a synthetic fx stock? I want to maybe hydro dip the stock, shroud, tank cover and maybe the air cylinders if I can mask off the valves properly.
I hydro-dipped an MK1 synthetic stock. But the newer MK2 synthetic stocks have a "soft touch" coating on them. I'm not sure if the paint will adhere to the MK2 stocks. You may have to sand the soft touch coating off first.