I don't know anything about the XX or hteir compact model. I do know you can get a used P 220 for about half the money of a new one. Cops turn in their service pistols and Sig inspects them, fixes what needs to be fixed and sells them. I bought one and it came with night sights, I put Houge grips on it and I wouldn't trade it for a new pick up. Check their web sight . Good luck.