I bought this gun in January from a buddy of mine. His Grandfather was a gunsmith. His Grandfather died and they have no idea what has been done to this gun. I have the blue case from springfield that has the s/n along with a Springfield part number of PI9CUS45. I called Springfield and they said it did not come from the Custom shop but was a custom order. But they did not have on file what had been done in the factory to the gun Expect it was a .45SUPER. From what I can tell it was made in 1997 Has adjustable trigger Light weight hammer Adjustable sights Beaver tail I am trying to figure out how much the value is for insurance.