I'm in the process of trading for another G30 (I know I'm hooked, no turning back now). I asked for the serial number's first three, and it was numbers ending in RSR. I found this on the serial number project: ####RSR (No US) - G-30 - 2001 - - RSR Wholesale special run What does the above actually mean?? And is this a Gen 2.5? Just trying to gather the value of said firearm. I'm almost positive I'm going to do the trade later this week or next weekend. Just trying to do some homework first. Thanks for any input!