Abigail Breslin -- Pulls a Juan Marquez and KOs a Stunt Guy

Who knew "Little Miss Sunshine" Abigail Beslin was such a bad ass? The 16-year-old actress sent a stunt man straight the medic on the set of her new film ... after SHE PUNCHED HIM IN THE FACE!!!!Abigail is up in Canada right now filming "Final Girl"…