A good HPA carbon 68/45 or 45/45 tank. (to save money, I started with a crossfire 47/30 steel, but im looking to upgrade that sometime...no one knows though, its under a Rhino

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I use a Halo TSA on my ion (again, i dont have lots to spend) and it works quite well. Ive gotten around 12-13 BPS without chopping. Because I saved on the hopper/tank I was able to get my Dye Ultralite, which makes a HUGE difference to me, its an amazing barrel.