The marker comes as it's pictured with a barrel, I can chuck in a barrel sock if you wanted. Any paintballing air tank will go on the marker.Does the marker come fully boxed with all the stuff and will any 4500psi tank fit?? thankyou for all your awnsers and info. i am going to get the money together for the marker and the hopper. hopefully you will still have it hear for a bit longer. will be in contact soon. Thanks.