someone asked me about an ak47, hasnt been touched since 1981 or 1982, was never cleaned, left in a damp basement, and when the owner passed, a relative got it.
I cleaned it up.
The residue, grime, crud, came right off completely with some hoppes, the bolt cleaned up like new.
after I stripped it down and cleaned it, I had a tough time putting on the cover, just wouldnt snap in, but eventually I realized maybe I was trying too hard the wrong way.
The gun was shot today, 150 rounds,5 mags(I think they were all 30 rounds mags) accurate and no sign of wear and tear or neglect.
gotta love the way they made those things.