The MAC-10 is a compact, fully automatic submachine gun with a rectangular, boxy design, featuring a short barrel and a prominent magazine well. Its body is primarily constructed from stamped steel, giving it a utilitarian and rugged appearance, with a matte black finish to reduce glare. The weapon includes a wire stock that can be folded to the side, enhancing its portability, and has a simple iron sight system mounted on top. The grip and foregrip are made of textured polymer for better handling, and the magazine is slightly curved, holding .45 ACP rounds.