Carlsons Invector Plus Replacement Choke Tube. Manufactured from 17-4 heat treated stainless steel. They are compatible with steel or lead shot and may be used with any Browning Invector Plus Choke System. Steel Shot should NOT be used in any Turkey Choke Tube. Lead, Copperplated, Nickel, Hevi-Shot, or Bismuth may be used in these choke tubes.
Browning Invector Plus 12 Gauge Flush Mount Replacement Stainless Choke Tube. Constriction-Full, Diameter is .710 Carlsons item #19966