A refinement of the Madsen M46, the M50 replaced the "bracket" style cocker with a more comfortable knob design, while retaining the novel "fold-open" takedown system. Fixed blade and peep sights, with combination barrel shroud and takedown nut, and the model and caliber markings on the right side of the receiver over the "MADE IN DENMARK" stamp. The grip safety behind the magazine well has been removed, with a more conventional safety switch installed on the left side of the frame. Included with the sub-machine gun are seven extra magazines, a loading tool hidden in the grip, and a blank firing conversion kit consisting of an obstructed barrel with takedown nut, spring, guide rod and an extra loading tool.