Procured by the U.S. government during WWII to aid in aerial gunnery training. Features a factory installed Cutt's Compensator, standard barrel markings with "U.S./flaming bomb" just forward of the breech. The barrel is correctly not marked for a choke. Standard markings on the receiver with the war time production "U.S./flaming bomb-MILITARY FINISH" marking on the left side. A Nydar shotgun sight is mounted on top of the receiver. Manufactured by the Swain Nelson Company of Glenview, Illinois, the Nydar sight was similar to the sights used in World War II Allied aircraft (a bullseye is projected onto a large outer ring which is mounted with reflective glass). The sight has a leather lens cover. Smooth walnut forearm and pistol grip buttstock with the military "crossed cannons" acceptance mark followed by the "FJA" final inspection mark on the left side.