Nothing plated about it. The receiver cover is Zamak 5 as is the frame. It's a high tensile zinc alloy. The color on the cover goes all the way through and it's tough. I've had mine over 10 years and I'd still rather have it than a marlin 39A.
Not to hijack the thread, but I once had a Marlin 39. NOT 39A, but just plain 39. Was my grandmothers and I believe her Dads before that.
MANY a squirrel found itself in the unfortunate position of being covered in gravy, in my youth, due to that rifle... And it was one of the most accurate rifles I have ever had. My Mawma was also the only person I have ever known that would make me cook the heads along with the rest, and would eat the brains as well...Never bothered with all that myself, but she was in her 20s during the depression so...
Long story, but that family keepsake, and bane of squirrels everywhere, was stolen from me in a round about way. I can only imagine what the value of it would have been today... I have never seen another in person..