The Nitro duck X-stream tank is a good and inexpensive way to have an adjustable air tank, it also screws in so it works with any cradle. The regulator is easy to use and read. its adjustable from 0 of 1,200 psi witch also makes very versatile be on how it can work very well with high pressure and low pressure guns. For the price of some preset tanks you could buy this adjustable tank. I only payed $220 for it. The only thing with this tank is that were the regulator is attach to the tank it wiggles around. At first it feels like the two are going to come apart. Once you get used to it, its not a big thing.
This is a good product. I wish that in the sport of paintball the there were more product out there like this. I would recommend this product to anyone.