Using national price search engine:
gun.deals deguns.net still has eight in stock at $399.
If you can add another $100 to your order to get to $500 use code: SHIP30 to get free shipping.
Their website says 'Sale Price' $439 but if you say you saw it at $399 on gun.deals they'll honor that $399 price.
They're all getting clever to try to get + business, but with The Forum we can try to keep 'em honest!
I've gotten a bunch of guns from deguns.net and they're very reputable.