I called Benelli since they only shipped the Modified choke and finally got through. This is after several discussions with them on choke recommendations. They personally told me to ONLY use a Cylinder or Improved Cylinder for Buckshot and Slugs. They told me that the M4s are supposed to be shipped with 3 chokes and they are shipping the others this week. With this in mind they told the dealer (whom I purchased the gun from) when I asked him about it that the web site was wrong and it only comes with one choke and that was it. We will see if I get the others.