Manufactured on contract for the United States Government, the Thompson 1928A1 is one of the signature American weapons of World War II, being deployed in every theater of the war, both in American hands and among numerous Allied units via equipment sharing and Lend-Lease supplies. The 1928A1 is still very close in overall configuration to the original Roaring 20's/Great Depression "Chicago Typewriter" of gang warfare fame, retaining a number of options that would be eliminated from later production to lower cost and speed production. A number are believed to have been released to civilian and law enforcement buyers, having been left over after the military transitioned to the simplified M1 pattern Thompson. A blade front sight is installed on the Cutts compensator, with a fixed peep rear sight on the receiver. The barrel retains the cooling fins, with a set of 1921 pattern furniture. In addition to the commercial-style markings, the left side of the receiver bears the U.S. nomenclature and "RLP" inspection mark. The trigger group is numbered "S-435316", with "FULL AUTO"/"SINGLE" selector lever and "FIRE"/"SAFE" safety lever, a grooved pistol grip, and a quick detach buttstock with trapdoor buttplate. The bolt assembly is blued, 1928 pattern with Blish lock, oiler, and articulated firing pin. Includes a modern made black leatherette FBI-style case, two extra stick magazines, and an Auto-Ordnance "L" type 50-round drum magazine.