This is a Perazzi MX8/type-4 12ga bbl with 2mm-low step rib,27 1/2",choked- CL/CL, ported on both bbls, bore-18.4. weights # 1.420kg, comes with full set of sub-gauge tubes &tools in the Americase, condition is about 95%-97%.(NON-CASH PRICE + $121.26)