View Full Version : expansion chamber question

01-02-2007, 05:54 AM
hey guys, i am new and i have a quick question. if i where to buy an expansion chamber (cuz i want the ak-47 clip one) can i use hpa with that or only co2? thnx

01-02-2007, 06:28 AM
well i hope you can use hpa since i just got one and all i use is hpa. i did a test run and it seemed fine.