Author: mschmidt
Date: 2019-07-30 09:16
Interesting. My AK has plating wear but it never turned black. What shows through on the worn keys is more of a coppery bronze color. Silver oxide is a brownish black color, but I would guess that it would only build up on the posts and sleeves, not on the keys where the fingers would tend to wear off the silver oxide.
Mike
Still an Amateur, but not really middle-aged anymore
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