Unknown 12 gauge shotgun barrel with screw in extended choke and Piston

I was told it was Turkish and I was told this is new and never been fired threw.. it has the Piston and scew in steel extended mod choke for steel shot .. it is a 28" barrel if anyone knows what this goes to please let me know.. it has a groved rib that goes the length of the barrel and the bead sits down into the Grove.. please feel free to ask questions or for more pictures and please check out my other adds