Well the MSRP on a stander one right now is $648 but as we all know they sell for $150-200 less than that. Yours looks Stainless not Nickel, has a few dings on the grips and frame. The fact that it is fairly old, as indicated by the fact that it has no Decocker also reduces the value. But the mags don't really loose any value and those sell for about $36, so multiple by 7. I would probably pay $650 for all of it, that's just me though.