Just recently purchased a triumph MZ (blue- black) by mail order. In preparing to mount a scope base I was cleaning the barrel holes of oil with Hoppes cleaner-degreaser and accidentally got some on the receiver, the finish started coming off. IT IS NOTHING MORE THAN PAINT! It is early production 27XX. Looked at one at Cabelas yesterday, serial in the 28XXX range, it was nothing like mine, receiver was finished similar to the silver barrel only darker and the butt stock had checkering. Called TC about the problem, told me to send it to them, what a hassle with a new gun. If you are buying, check receiver for weathercoat finish.