Three Point Innovation’s Box-to-Mag speed loader allows ammunition to be loaded straight from 20 round boxes into AR-15 magazines. If you buy your AR-15 ammunition in boxes, rather than loose or on stripper clips, then this product is for you.
Product starts in September and will go on sale in October for $25. Currently there is a pre-order discount.
[ Many thanks to jdun1911 for emailing me the link. ]