[SARTHREE]

If I want to get my USC milled after I dye it, will I have to re-dye it? I am concerned that the vented hand guards, milling the mag well, trust info engraved, etc will not be "black" underneath the surface...Any insight?

 

[Schlafftablett]

You are correct. The dye only penetrates about .002 or so and any cutting you do after dyeing it will show gray.

 

[SARTHREE]

Thanks Schlafftablett...saved me some time and effort tomorrow.