green gas adapter or green gas clip?

[hart23]

I have an SW40F CO2 version. I found a green gas version of the same gun (with out the extended CO2 clip). Will the green gas clip be compatible with my CO2 gun( the guns both look exactly the same)? I wanted to know If I should

A. buy another CO2 extended clip (30 shots) for 40$.

B. Buy a green gas valve adapter that fits into the bottom of the extended clip for 4$.

C. Buy the green gas clip (15 shots) for 38$.

[bigc]

I don't know about a clip but I would say a green gas magazine and a propane adapter are in order.