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Styrak · July 21st, 2009, 08:37

The WA GBB M4 is HFC gas (you can use green gas/propane but you'll wear out parts a lot faster), every other one uses green gas/propane.

July 21st, 2009, 08:37	#3
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	The WA GBB M4 is HFC gas (you can use green gas/propane but you'll wear out parts a lot faster), every other one uses green gas/propane. __________________ Airsoft Sales and Repair/Upgrade Services