According to The Daily Mail,
Next year, McDonald’s will roll out mini and mega versions of the Big Mac. The classic burger is currently constructed with two 1/10 pound all beef patties, special sauce, lettuce, cheese, pickles and onions on a sesame seed bun. The Mac Jr. will be made with 1/6 pound patty and the Grand Mac will feature two 1/6 pound patties. The new burgers were tested earlier this year in Ohio and Dallas and were about equally popular.The two new sizes will available for a few weeks in early 2017 and whether they stay as permanent figures on the menu will depend on sales.
Dang, now I want a Big Mac from McDonald’s. The #1 lol