Well, that's all well and good... But that's a .40.
As for the guy selling them at $325, from what I saw he only had 17s, 22s and 23s.
From the 9 x 19 on the slide I would suppose it's a 9MM.
just wondering what table was this, that was selling all these used Glocks? I saw one guy who i bought a gun from, he had a lot of used glocks, but none that i could see with police logos.