Their problem as I understand it is two-fold...One - getting the barrel extensions that they need to build the barrels in the first place (delivery times from the various sources from DPMS to many others are more or less "who the hell knows when" as the mfgs are using the extensions for their own rifles, etc., and I know people who've been waiting on Armalite barrel extensions for nearly a year...well before the current craze); Two - the sheer volume of orders that Krieger has received and were already committed to prior to the current craze has basically put them in a position that they can't (and WON'T) give any sort of a timeline for barrels.
Given that you got your order in fairly early...you may be in a somewhat better position than others who didn't order until the last month or so, but I'm betting you'll still be at least 8-9mos out..