I don't think that is a great price. It's a DAK. They are harder to sell and bring less money.
CDNN has CPO P220s with 2 mags at $549 with a 1 year warranty. They show out of stock but that is a price point for reference.
They show 2 in stock Elite P220s with 2 mags 1 year warranty $549. No rail. German built which I personally think are better guns.
CDNN SPORTS - SIG SAUER P220 ELITE CARRY 45ACP CERT LN GERMAN