Browning Diana Grade Extended Choke Tubes

Browning Diana Grade choke tubes produce tighter patterns than Browning Invector Plus choke tubes.Features:- Stainless steel barstock and heat treated prior to machining- Titanium nitride surface 72RC harness for excellent wear and reduced plastic build-up- Absolutely perfect concentricity to provide superior patterningSpecifications:- Choke: Improved Cylinder- Color: Titanium Nitride, black band- Constriction (Inches): 0.01- Gauge: 12 Gauge- Type: Invector-Plus