The Ninja Pro 90cui 4500psi tank is a carbon fibre wrapped tank with a steel core, this allows for more pressure and larger sizes to be made that will help increase more shots per tank fill! With the lightweight and more volume also pressure, this means more shots per tank but either keeping the weight same as a traditional 48cui aluminum tank or sometimes even less! Pre-equipped with Ninja"s popular regulator, you will keep a consistent high output when firing higher rates of fire without getting eratic velocity readings. The new Ninja PRO Regulator features a swivel bonnet that allows you to position your fill nipple and guage exactly where you want it, quad adjustable output helps increase the air efficiency when correctly adjusted so your marker operates more efficiently and GENII SRT Piston gives better consistent flow for increase accuracy! Pick up the Ninja Pro 90cui 4500psi tank to get more shots from the tank while keeping the weight off and help increase your accuracy when shooting your gun!