$30 apiece, ugh, but there it is for anyone looking -- D&H 5.56 30rd AR15 Magazine Black w/Magpul Follower.
https://www.44mag.com/product/d_h_30_ar15_magazine_magpul_follower/223_ar15_magazines
https://www.44mag.com/product/d_h_30_ar15_magazine_magpul_follower/223_ar15_magazines