The GoG Preset "On/Off" Adapter fits between your paintball gun and gas bottle. It allows you to store your paintball co2 or HPA tank on your gun, and turning the flow of gas into the gun on or off with a quick turn of the tap.
*** VERY important - once you turn the gas off, always remember to purge or shoot out the gas still remaining in your paintball gun as this could result in seals drying out and/or problems arising. We also recommend a couple drops of paintball lubricant through this adapter every full gas bottle to keep the adapter's seals from drying out.