SP impulse with 32* drop forward and a Pure Energy 20 oz with anti siphon and this on/off
saves your o-rings, conserves gas, looks good, pretty cheap, easy to turn, does what its supposed to
if you for some reason turn it on while not attached to the gun, it will shoot CO2 everywhere. but i really dont know why anyone in their right mind would do that...
i got mine for $20, something really simple that helps you out alot. pays for itself in o-rings very quickly. tanks without on/offs, when you take them off sometimes the o-ring is all white and stretched out. when you take the tank off with this, the o-rings look perfectly new.