An estimated 963 million magazines were produced and entered the commercial market between 1990 and 2021. Of the estimated 963 million magazines, approximately 74 percent, or 717 million magazines, have a capacity of 11+ rounds. A majority of the 11+ round capacity magazines are rifle magazines. About 46 percent of the magazines estimated in this study are rifle magazines with 30+ round capacity. The percentage of detachable magazines at 11+ capacity is about 55 percent of total pistol magazines. The amount of 10 and below capacity rifle magazines supplied from the manufacturer is over one and a half times the amount of 30+ capacity rifle magazines. The consumer market totals of rifle magazines show 30+ capacity magazines, over 413 million, are over thirty times the amount available than 10 and below capacity rifle magazines, about 13 million.