"OL: Are you a gun owner? If so, what is your favorite gun?
Bush: Yes. My favorite gun is a Weatherby, Athena 20-gauge (over/under).
Kerry: My favorite gun is the M-16 that saved my life and that of my crew in Vietnam. I don’t own one of those now, but one of my reminders of my service is a Communist Chinese assault rifle"
http://www.outdoorlife.com/outdoor/news/article/0,19912,696240-4,00.html
admittedly , a little sketchy , as that man always is.
and also it could have been an SKS Type 56 semi .