tenusdad
If my memory serves, these were called K120 Riot Guns by High Standard, we had a couple in our armory. They had very slick actions, a barrel fixed to the receiver (not removable). They seemed to gum up a little quicker than the 870 or M-37, that is of little importance since EVERYTHING gummed up in south east Asia.
I would buy it, but I am a sucker for riot scatterguns.
Good Luck & Be Safe