Manufactured by Wilson Arms of Brunswick, Georgia, using components from the famous Swedish M/45 "Swedish K" submachine gun. Homegrown in Sweden late in World War II, the M/45 took lessons from the other "tube gun" SMGs of the day, adding some refinements without losing sight of reliability and speed of production. Adjustable post front and 3-leaf notch rear sight, with the Wilson markings on the left side of the receiver, Swedish "crown" proof on the left side ahead of the detachable magazine well, ventilated heat shield, smooth grip panels and a side folding stock with a rubber cover on the comb. The muzzle has been threaded, with a crude thread protector installed.