Are the manufacturers able to meet the demand?
Most of the suppliers to the gov are already gov contractors I think. In any case, those orders for billions of rds are for a ten year period or more and most of it hasn’t been manufactured yet much less delivered. On top of that civilians already own trillions (not billions) of rds of ammo and the makings of ammo. It is civilian demand that has put a crimp on retail supplies.
For 5.56, ATK (Federal Ammunition) has an order queue that will take three years to fill. I’m sure Wolf is in a similar predicament. If I were Federal, once the House makes it clear there will be no new AWB (and they will); I’d be building another factory.