Most MG demanding high price on the U.S. market are actually common guns in the world. Even a super common AK-47 or clones (made over 100 million??, way more common than SKS) bears 5 digit price tag simply because the supply was cut in the "walled garden"..... I bet it's dirt cheap in the Middle East, as reflected in the movie "Lord of War"
Same is true for M-16, MP-5, etc, etc, etc. Unlike those, this COLT Walker (don't know what it is) must be rare ANYHERE in the world. For 920k, it has to be, it has no other choice