On top of all of this demand, Magpul has also been dealing with the Colorado legislature for the last few days this week and have stated that if Colorado's House Bill 1224 goes through, Magpul will pack up shop and move to a friendlier state.
If this happens, there won't be any
Magpul mags being manufactured during the time of the move.
Here's a link to a news story about this.
Also, judging by the piles of mags on the workbenches throughout the video, it certainly looks like Magpul is doing their darndest to keep up!