I can't speak to his choices on sights at the time as I was not really interested in ARs but I have a picture of him somewhere when he first stepped off the plane and had an AR like his buddy to the right of him. His explanation to me was that he grabbed the C7 off the rack along with a P225 and then onto the plane. He was an MP based in Trenton at the time.
I see he was very resourceful and hope it runs in the family. Sorry you lost him. The P225 is sweet! So much better than the burned out Inglis. Pretty sure he pissed off a CSOR op.