Since the dyes are "TRANSPARENT" they can ONLY be applied to WHITE or LIGHT COLORED items!  Fortunately, enough treatments of DARK (read: BLACK) DYES will eventually lead to a black color on a (previously) WHITE or LIGHT COLORED item (such as the plastic stocks of the SL8-1 and the USC45).

I would like to AGAIN say that this color is impregnated INTO the material and NOT ONTO the material. It CANNOT be reversed,  nor can it be SCRAPED off and will not "scratch or peel". You will have to actually DAMAGE the plastic (perhaps by GOUGING IT WITH A KNIFE OR CHISEL!!) to get deep enough to reach unaffected plastic. Therfore, IF you DO remove the coloring from your rifle, you've got BIGGER problems than a "screwed up color pattern on your gun! I'm sure if you experimented with enough acids and chemicals you could probaly strip or "screw up" the color of your dyed rifle. 

If you want to ruin your gun to prove the dye is NOT the most INDESTRUCTABLE element on this planet, then knock yourself out!! However, if you simply want your SL8-1 or USC45 to be BLACK, and are willing to give the gun REASONABLE care and maintenance,  then this is probably the most ideal way to do it.

The above statement is in response to some rather "radical" questions I have recently received from a couple "potential" (read: "unlikely"... just lonely for conversation) customers  (where do these people come from?) proposing different scenarios that I could only imagine would occur in a comic book!