Made in China. TFs are no longer made in Japan like they used to be....
I guess for Devastator, the key question is which KO. This is a toy that has been KO-ed right from the get go from the 90s KO-ed till the present.
I do have a version in giftset box that came with all the guns (but they were all black). This is a late 90s, early 2000s KO. Not sure whether the guns are glossier or not though. I ended up spraying the whole thing black for kicks and then throwing it away... heh.