16 in. All American barrel
20 oz. Co2 tank
Jammed up a lot
Extra space was up needed
Heres the thing, this is the very worst hopper i have ever used. It had many problems. some were that when ever you shot it would jam up in the hopper and you had to shake it up to un jam it up. And the little thing at the bottom that was supposed to help it never jam up just made the ball clog up and make you dry fire. This is also one of the ugliest looking hoppers i have ever seen. Its all big and flat at the top which makes it look bad.
This is a horrible hopper and you shouldn't ever get it, all it will do is make you dry fire and so you will need to shank it up to un jam it. And even with the extra space you wont notice it because you will always be trying to un jam it.