1704 heat-treated SS. Use with lead shot on any constrictions. NOTE: Steel shot larger than #BB should not be used in any choke tighter than Full.
Carlsons 16617 Choke Tube Ber/ Ben 12GA EF Ber/Ben 12GA Flush.
Carlson's 19964 Browning Invector Plus Flush Mount Replacement.
Carlson's 19958 Mossberg M835/M935 Flush Mount Replacement Stainless.