The nice thing is that the gun has a cyclinder bore ( No choke) which means rifled slugs can be very accurate out to 100 yards.They make good hunting guns as well.
Benelli Nova Tactical Pump ( You can get a mag tube extension)
Usually when the term “assault” is used to describe a firearm it denotes that it has full auto capability, or someone (usually a gun-graboid) is engaging in inflammatory rhetoric. You don’t usually see it used to describe a shotgun, so I was having a little fun with your description.