All Paintball Guns require some kind of paintball tank to function. There are two different kinds of air tanks for paintball markers. CO2 is cheaper, industrial gas and the choice of most beginners. Compressed air tanks, are the other. Compressed air tanks are required for most mid to high end paintball guns. They are much more consistent than CO2 Tanks. Compressed Air tanks can be broken down to two different kinds, Aluminum which holds 3000 PSI, and Carbon Fiber which generally holds 4500 PSI. Carbon Fiber Compressed Air Paintball Tanks are lighter and are much more appealing to the eye! We stock Air Tanks from all the leading manufacturers like Ninja Paintball, Pure Energy, and Empire!