I may have been the last person on the internet to watch this video, but it made my day. It is hilarious.
In the video he keeps refering to “midcaps” which was a term I needed to google. Apparently it is an airsoft term for magazines with a 100 – 200 round capacity. “Hicaps” can have many times that capacity.
[ Many thanks to Sven (Defence and Freedom) for emailing me the info. ]