Expansion chambers easily convert liquid CO2 into a gas for more even air pressure to your valve. Keeps your gun from freezing up and your shot distance becomes much more consistent. Also less ball breakage.

ACI "Sub-Zero" 6-Stage Expansion Chamber
This expansion chamber is a quality exapansion chamber and an affordable price. It features six chambers, which will greatly reduce the amount of moisture in your gun and increase CO2 efficiency.

Total:     $65
 

ACI "Sub-Zero" 4-Stage Expansion Chamber
This expansion chamber is the same as above, but only four chambers. It will reduce the amount of moisture in your gun, and will slightly increase gas efficiency.

Total:   $55

Four-inch hose:     $10
Five-inch hose:     $10
Six-inch hose:        $10
Seven-inch hose:   $11
Eight-inch hose:     $11
Nine-inch hose:     $11

Hose length will vary with different guns and expansion chambers. The length will be determined when you give me the gun. I will reuse your current steel-braided hose if it is long enough. I recommend steel-braided hoses over macroline hoses because macroline hoses are more likely to leak.