It would have been $400 without the Red Dot sight. It is a new model, but LN no box. I also have a 4-digit, 3-screw I value at $650 for insurance purposes, but it is LNIB with $80 worth of faux Ivory grips. There's only the faintest of turn lines on the cylinder.
The similar model on Gunbroker would seem to me to be a great deal if it goes for $400. Add $25 shipping, then I would have to pay $40 FFL fees + 9% tax for a bottom line of $506.85. Smokin'