I doubt Marquez 'loaned' them, nor would he buy them as a gift. He had to have sold them which is a crime. Feel free to correct me on the values.
I’d doubt ‘loaning’ is a valid excuse in California. The guns and sights...and trip to Saudi all seem very expensive to me, especially for a guy making $70k in California with a new baby. I wonder if he had an, ahem, benefactor from Trashcanistan or some place similar.