Local GM has one for sale- 28" VR with std. fixed chokes- thinking about one for casual SC events- But this is an early series with the two through pins in the receiver rear, no encircling around the rolled-engraved-doggy on either side- and when you open her up and look down into the breech at lower rear of the standing breech, there are no allen screw heads visible- so this was never returned to Ilion for the recalled/refit program, right? How much of a risk am I taking, would maybe shoot 300 AA loads through it on clays in a year-??