Stumbled on it at one of the big pawn shops in town during the annual city-wide "50% Off" Wknd.
Was originally $300, marked down to $150.
It was in near new shape, except that the bore looked almost rusted solid. As I was looking for an inexpensive snake gun for bank and bateau fishing, I figured it would clean up enough for that.
Pointed it out to the gunsmith in back, and he said he would work on it.
...without too much success.
He said he'd mark it down again, to $75, if I was still interested.
So I bought it.
Took it home and soaked and scrubbed the piss out of it - no luck. Bore looked like a red dirt road.
Then I saw the GI stainless-steel 5.56mm bore brush rattlin' round in my cleaning box.
So I pushed it down the muzzle... and then pulled it out, once, and followed it up with a greased patch and jag.
Pristine bore and rifling - looked back at me from the muzzle... like the start of a "James Bond" movie.
The stuff on the brush and patch looked like polymerized grease/wax/cosmoline/cardboard/drawer lint resin, like the stuff they used to make skateboard wheels out of.
It had just laughed at the brass brush.
Darn thing shoots groups that make my Ruger MkII Target blush.
GR