Just wanted to know since the micro emag uses the retro valve. Could you use that retro valve on a regular mag? Also could you put the classic valve in the micro emag and make it work? Just wanted to know if this is possible cause i might be getting a used micro emag and wanted to know if i could fool around with the interchangable parts. I could make a classic micro emag and make the emag run on co2 YAY! (just wanted to know if it would work)