I bought one of these slide plates. Took it out of the package and the bottom 3/4's discolored by touch. Sent the company an email. They sent back a reply stating...

If you touch it it could discolor
If you get gun oil on it it could discolor
If you get gun solvent on it it could discolor

They included a video stating to clean the back plate with rubbing alcohol.


Mine didn't clean up.
Looks really good in the package when it first arrives. But unfortunately sending back.
YMMV

I found another back plate mfr and they make their product out of T6 aluminium. https://www.bastiongear.com/collecti...-shield?page=9

Thinking hello kitty punisher.