Browning Diana Grade Extended Choke Tubes are made to replace Browning Invector-Plus choke tubes to produce tighter patterns. Diana Grade Choke Tubes are made from stainless steel barstock, with Titanium nitride surface 72HRC hardness for excellent wear and reduced plastic buildup. Browning Diana Grade Extended Choke Tubes extend beyond the barrel for easy removal and installation. Produce tighter patterns Titanium nitride surface 72HRC hardness for excellent wear Reduce plastic buildup.
