They only have so much manufacturing capacity. Most were running at or near capacity before the panic. Nothing was available in 2008 either. Ammo, primers, powder, nothing. That time manufactures made efforts to increase capacity; new buildings, new machines, etc....I suspect people like Magpul won't be doing that this time, at least until they know what they will legally be able to manufacture in the future. Until then, they will just keep running at their current max capacity even if that can't keep up with demand.