Depends on a variety of things. Blued I assume? I traded an XDS for a mint nickel 19-3 4" not too long ago. No box or docs, but I was happy to have it and had gotten the XDS for $525otd (which I ran out and bought another anyways). I think going rate is $450-550. Maybe more with all documentation, and either the 2 1/2" or 6" barrels as they are less common. Now that I have mine, I doubt I'll ever sell it.