There's a pretty Big Distributor running a Buy any 556 get a 522 Free ! If any board member knows a dealer/FFL holder they can take advantage of this deal. This is probably why there are 522's going for around $400 now. The 556's have dropped in dealer pricing, this is turn has dropped the 556 consumer pricing. This might be SIG USA's way of getting rid of excess inventory before all the other mfg's come out with their new models later this summer, ie. SIG has their Piston AR clone coming out, Hk is suppose to have their US Civilian Piston AR, Bushmaster has the 1st generation ACR out now, etc.