Brass Eagle Pocket Hopper (OK but tends to SELF-DESTRUCT when hit with a paintball)
"Ammo box" style hopper designed to be loaded with 10-round tubes (OK but loading is inconvenient without 10 round tubes)
AGD Classic 68 Automag
Palmer Pursuit Shop 12" dual-vented 0.685cal barrel
J&J brass barrel
Palmer Pursuit Shop male stabilizer
9oz. & 3.5oz. anti-siphon CO2 tanks.
Winchester is the KING of the 50-round class hoppers. You've got a few options in this area: the Winchester, the Brass Eagle Pocket Hopper and "ammo box" style hoppers which load using a 10-round tube.
I've used all three and now only use the Winchester.
I play most games with the Winchester as it holds enough paint to be used for light-duty suppression and it's small enough that you'll avoid hopper hits more often than you would with a more conventional hopper.
One thing you should do immediately is upgrade it with a flip-open lid. I use a Dye-locklid on mine but I've seen other styles of lid on the Winchester. It's easy to just pop a new, collared lid on and expoxy it in place. With the lock-lid, you may have to put a tiny screw and washer on the "post" for the pivot arm to prevent the arm from coming off. (if the lid were on the Dye lock-lid pod, the pod itself would keep the arm from coming off)
You won't likely play a tournament with this kind of hopper (though it's been done by the LA-Hitmen when they play pump) but it's a lot of fun and forces you to conserve ammo or at least be more aware of how much you're using.