NONE-But I have seen other loaders that can be used for Tippmann Guns but none even compare!
Tippmann Custom Pro
Stock 11" Werks Barrel (NEEDS TO BE UPGRADED)
Loads as Fast as Response trigger fires 15-20 bps
Need to contact Tippmann for t-screw
Doesn't work when CO2 is low
The Tippmann Cyclone Feed is more than worth the money. It costs roughly 65 dollars but does the job of a 100 dollar hopper. You never need batteries, so don't worry about carrying extra batteries or even dealing with the hopper not working to its full potential at all times ... Until you are running low on CO2. Also the hopper NEVER chops paint and feeds super fast but only feeds when you pull the trigger. The hopper is kind of big so your gun is seen easier by your opponents but atleast it is black like the rest of the gun. So just keep your gun hidden until your goint to shoot. DUH you do that any way. The hopper is the best upgrade to your Tippmann Custom Pro or Tippmann 98 Custom and beats any other hopper.
I would say that if you don't have this upgrade for your Tippmann, get it! It's pros out weigh it's cons. Just call Tippmann before you buy it and they will send you the fitting in less than 2 days. Also you can buy the low pro hopper so you don't have to worry about being spotted. And who doesn't have extra CO2 tanks? All the cons our minor and the pros are the ultimate improvements.