Evolution of the M1 Garand Rear Sight

This is a good article, but I guess he had to get it published, because it just sorta ends without mentioning National Match Rear Sights, of which there are at least two types (hooded and un-hooded), and later upgrades for M-14 sights which also work on the M1 Garand, etc. A modern evolution of the M1 rear sight is Red Dot Sight mounts by companies like Hopco (I have one with a Trijicon RM05 on one of my M1's, and I love it) Info about sight adjustment at given ranges might have been useful as well, but still a pretty solid article.