Very nice 30 " 12ga barrels, 8mm tapered rib, with a complete set of Briley sub gauge "skeet" tubes, the 12ga barrel has Briley screw-in Chokes skeet and full flush and improved cylinder. light mod and full extended. The sub gauge tubes are 28" long and fit into the Briley chokes, I used the open chokes in the 12 gauge barrels when with the sub gauge tubes. It seemed that the tighter screw-in chokes would tighten the 20 gauge pattern. I spent over $800.00 for the 12 gauge Briley choke tube installation alone. All barrels are in excellent condition. These barrels fit on k32 receiver or my k80. Best to use "AA" or"STS"hulls. $2950.00 ,plus $25.00 shipping Joe .