Yes, we have a Mal in our club, a female, weighs in at 65 lbs - working line dog for IPO - she is the smallest of her litter. All the other dogs in the same litter are bigger.
Just spent doing bite work last weekend with a trainer who also has a Female Mal: All of 45 lbs of her! LOL, she looked TINY! But unbelievably strong! When on the bite suit, people could hardly move with her holding them back.