The truth of the matter is, since Sig won the Army contract for the P320s they most likely are concentrating on ramping up production for the Army models. Sig, while a very reputable company, does not have a huge manufacturing capability like some of the other manufacturers. Consequently, the production rate for their other models probably is slowing down and the available inventory at the wholesale and retail level is dwindling. There also is a high demand for the P320 in the civilian market, which is also putting pressure on Sig as well. In time I'm sure things smooth out, just keep checking.

Keep checking back, sometimes companies change SKUs, model numbers, etc. Especially this time of year. Products added/dropped.

They just dropped the price of they're models by $100 and started selling quick I picked up the p226 extreme & scorpion

Since the recent Military contracts Sig has acquired, the civilian market soon follows and demand is temporarily higher than supply. This has been the history of manufacturers like Glock and others.

normal ups and downs in inventory and production