Semi-automatic 12 gauge. Ribbed barrel with double beads and adjustable choke.
I don't have much information on this gun. It is a hand me down and likely hasn't been shot in a number of years. It is a beautiful gun though it has a few dings that I tried to show in the photos. There is a 1/2" nick out of the stock right in front of the butt plate and a circular spot in the bluing on the barrel.