sweet how much did you buy it for?
Nice gun, got one of those in the stable.
Noticed your moniker is XD Sub-compact, but that is an XD Service a.k.a. 4". The different XD models are confusing at first, between the XD line, XDM line and the XDs.
Sub-compact will look like this. This is an XD40 Sub compact, but exactly the same size as the XD9 Sub compact.