I can’t imagine a Mara toting a rifle that weighs over half what he does.
I can, guys with a .50 can't move fast anyway. Besides not all Mexicans are small. The father of one of our exchange students from southern Mexico, and her brother, are not small men, in fact they are bigger than I am, and even when I went into the AF, I weighed just over 200 lbs @ 5'11". (I weigh "just a little more" now, and am marginally shorter).