This is an excellent example of a late production Model 1928 Thompson Submachine gun manufactured by the Auto-Ordnance Corporation of West Hurley, New York. These SMGs can be easily identified by the "A" serial number suffix. These new production weapons retained many of the earlier original style parts such as the finned barrel, Thompson-Cutts style compensator, vertical fore grip, detachable buttstock and adjustable ladder rear sight. The left side of the receiver is marked "U.S. MODEL 1928/No.1731A" followed by "THOMPSON SUBMACHINE GUN/CALIBER .45M1". The right side is marked "AUTO-ORDNANCE CORPORATION/WEST HURLEY, NEW YORK, U.S.A.". This desirable weapon has an all walnut stock, vertical fore grip and pistol grip with the later brush blued finish. Includes a 50 round drum magazine.