Briley Browning invector Plus Spectrum Black Oxide Choke 12 Gauge Improved Cylinder .010. This Choke Tube by Briley is used in all field choke tubes for the Browning A-series. The Briley Browning Invector Plus Spectrum Choke Tube is made of extremely durable and long wearing materials that is sure to provide you with years of reliable use. This Briley Choke Tube uses high quality precision machining to create a multi choke tube system that is perfect for even the most demanding of shooters. For a great way to see how much better your shooting could be choose the Briley Browning Invector Plus Spectrum Choke Tube. Specifications for Briley Browning Invector Plus Spectrum Choke Tube: Manufacturer: Briley Gauge: 12 Choke Tube System: Browning Invector Plus (+) Gun Make: Browning Condition: New Package Contents: Briley Browning Invector Plus Spectrum Choke Tube Briley INPSB12IC: Browning invector Plus Spectrum Black Oxide Choke 12 Gauge Improved Cylinder .010