...On edit: Almost forgot something is wrong when you cock the hammer. Near the end of the hammer throw the resistance increases an abnormal amount. Better have it checked out.
What is this about a Model 520, apart from the fixed sight one from 1980?
What would distinguish it from Model 28?
The titanium cylinder was standard on the new M520, product code 164297, and it's a 7-shot. As previously mentioned, it was built on the more modern L-frame, a frame size specifically designed for the .357 Magnum cartridge. Whereas the original M520 was the larger older style N-frame. Also, on the new gun, the front sight was pinned, and as you can see in the pictures, of the "hi-vis" light pipe type.What is this about a [new style] Model 520, apart from the fixed sight one from 1980? What would distinguish it from Model 28?
IMO the prices given are way low, with the exceptional accuracy these revolvers are capable of I would expect the market price to be in the 700 dollar range.
They're practically unsellable on GunBroker. You might get one fish biting at a BIN at that price once in a blue moon but it's going to sit up there for a long time.