Believe me, they are restocking as fast as they can, but this isn't just like picking up the phone and saying "I'll take x amount of folding stocks please...."
There is an embargo on shipping of gun parts and accessories out of the Black Sea area by the two main sea shipping carriers operating in the area. That shipment of 7000 AK's that were pulled in Italy that Century was importing scared a bunch of folks, and the major carriers aren't willing to ship that kind of thing anymore.
K-Var is having to deal with Bulgarian schedules, shipping issues, and US Customs. The Bulgarians are one of the major contractors to supply the Iraqi National Guard and a lot of the police over there with new AK's, and that's where most of their production is aimed.
American civilians get to take a back seat. We don't buy enough.....