help me im not cool!

[slikna99]

what is an expansion chamber and what is a bottom line

[Creeper]

Expansion Chamber expands your CO2 so it doesn't freeze up your internals and start firing out snowflakes. Its helpful if you play in the cold with CO2. It looks like a foregrip that comes down from the front of the gun, and there is a hose attached to it.

A bottomline is what makes your air tank horizontal. A verticle tank comes down from an adapter. If bottomlines are optional in your gun, a steel hose will come from that adapter into something that mounts under your handle.