Patternmaster Code Black Duck 12 Gauge Hunting Shotgun Accessory Durable 17-4 Stainless Steel Choke Tube | Effective Range Up to 60 Yards | for Benelli Crio/Beretta Optima Plus (5372) 83906-M Software is compatible with some

Software is compatible with some versions of Windows and Mac (visit list on Cressi website)

Greases protect against oxidation (galvanic corrosion) and are free of mineral acids

precision fit with the BOA Fit System

the Pano 4 combines excellent field of view in a multi-lens design with reasonable internal volume for better clearing and a lower profile in the water

Patternmaster Code Black Duck 12 Gauge Hunting Shotgun Accessory Durable 17-4 Stainless Steel Choke Tube | Effective Range Up to 60 Yards | for Benelli Crio/Beretta Optima Plus (5372) 83906-M Software is compatible with someThe Code Black Duck is arguably the worlds most versatile tube. Imagine a single tube that will get it done in everything from the Arkansas timber, Eastern Shore Geese, all the way Georgia Dove Field and still hold its own on a Missouri Longbeard. The Code Black Ducks versatility is not only in its patented design, but in its construction. Our patented stud ring design shortens the shot string immensely so when you hit your target, you hit em with the