I just got back from OfficeMax and Staples here in Phoenix and neither one apparently carries WHITE china markers, yet both have them on their websites.
Edited to add that I found it at an art supply store here in Central Phoenix called AZ Art Supply if anybody else is interested here in Phoenix.
Further edited to add the results. I used the bottom an exacto knife to grind in clumps of the china marker into the lettering on some letters because they just were not taking the grease off the china marker itself very well. Removing the excess grease from the clumps that were grinded in were a pain but it paid off. Don't use an exacto knife like I did though. Try and find something plastic instead. As you can see even though the bottom of the knife is rounded and there was a thick layer of grease, it did go through and leave some marks on my receiver! Oops!
I don't really care about scratches though. I don't own the gun for looks, but I do think that this really does make it look very nice:
And yes, I do have a
black Bushmaster and not purple.