Originally manufactured by SWD of Atlanta, this M-11 SMG has been fitted with a Calico conversion kit, which takes a Masterpiece Arms style extended M11 upper with short mounting rail and side-cocking and integrates a Liberty 50 front sight/magazine housing and a bolt reconfigured for same, giving the M11 a 50-round capacity. Adjustable post front sight and two-leaf magazine mounted rear sight, with a threaded muzzle, 5-slot accessory rail, "SEMI"/"SMG" selector switch on the left side of the receiver, safety on the left, and a telescoping steel buttstock. Included with the arm is a Calico 100-round drum magazine.