Carlsons choke tube flush mount 12ga x-full invector FEATURES -Winchester -12 gauge -Extra full choke -Diameter: .690 -Flush mount -17-4 stainless steel **Not for use with steel shot** Other Features: .690 dia.,safe to use with all lead,copperplated,nickel, hevi-shot,& bismuth also fits mossberg accu choke & weatherby
