Patternmaster Anaconda Waterfowl 12 Gauge Choke Tube Browning Invector, Mossberg Accu-Choke, Win-Choke Long Range

The Anaconda Gas Over Constriction Choke Tubes use constriction as well as the patented "Coil Zone" to wind gasses around the wad to assist in constricting and pattern uniformity. Patternmaster Anaconda has "Gas over Constriction Technology" within the patented "Coil Zone" made up of internal channels used to harness gas expelled from the ammunition. "Coil Zone" channels are spun in a negative twist to stabilize the wad for even, consistent patterns and keep the tube tight in the barrel. Anacon