Waterfowl Choke Tube is a removable interior tube at the end of the shotgun barrel that controls the short dispersion. It has different types such as typically cylinder, modified, improved modified and full. All <a herf="http://mullerchokes.com/pages/waterfowl-hunting-chokes">choke tubes</a> produces a wide shot dispersion, whereas full choke tube will provide a much tighter shot pattern. We can see various chokes those being used for skeet, sporting clays and trap shooting.