Auto ordnance thompson serial number lookup

This was done to avoid delays in badly needed materials and to avoid the expense of rejected goods. Great emphasis was placed on government contractors to perform their own quality inspections at their factories to avoid having material rejected by the government inspectors. The purpose of the government inspection was to insure that the material being manufactured was the type, quality and quantity specified in the government agreement with the provider. Subordinate ordnance officers managed the inspection process, and all of the guns were actually inspected and stamped by personnel working under their respective chief inspectors. Springfield District Chief executive officers during WWII Thompson production were Waldemar Broberg and Lt. The initials of the chief executive officer of the respective Ordnance Districts, who were designated as Army Inspectors of Ordnance or AIOs, were stamped on the guns indicating that they accepted the weapons on behalf of the United States Government. Thompson Guns were inspected and proofed by on site Springfield ordnance inspectors. The Auto-Ordnance, Bridgeport plant was under the jurisdiction of the Springfield Ordnance District in 1941. All M1928A1 model Thompsons made at the Auto-Ordnance, Bridgeport plant were originally fitted with the horizontal style foregrips. Most of the Auto-Ordnance, Bridgeport Thompsons were fitted with the late (4th) style compensator that has the Thompson bullet logo on the left side, and the Auto-Ordnance name roll marked across the top of the leading edge. The Cutts compensator was retained on all military A-O 1928A1 models throughout production.

Thus, a low numbered Auto-Ordnance 1928 model was manufactured at the same time period a mid-range number Savage gun. The reason is that the Savage factory began manufacturing the guns approximately eighteen months before Auto-Ordnance. Note while the вЂњLвЂќ sight and smooth barrel began to appear on mid-range serial number Savage 1928вЂ™s they appeared on lower numbered Auto-Ordnance, Bridgeport guns. Even after the smooth barrels began to be fitted, the finned style barrels continued to sporadically appear through the entire serial number range until the end of production. As with the rear sights there was no defining line on the type of barrel that was installed on any particular serial number range on Auto-Ordnance Thompsons. In early production the finned barrel was still fitted on the Auto-Ordnance, Bridgeport guns, but was eventually replaced by the easier to manufacture, smooth barrel that began to appear at the 85,000 serial number range. However, there was no defining line where the use of the Lyman adjustable sight was discontinued, as they continued to appear sporadically throughout the entire range of serial numbers. On the Auto-Ordnance, Bridgeport produced Thompsons the вЂњLвЂќ style rear sight began to appear on guns at approximately the 80,000 serial number range. The parts that were manufactured in house by Auto-Ordnance were stamped with the letters AO or AOC.ДЄs production continued the Auto-Ordnance Thompsons, like the Savage manufactured guns, also began to be fitted with the simple stamped fixed вЂњLвЂќ style aperture rear sight. There were many Savage and other subcontractor manufactured parts used to assemble the guns produced at the Auto-Ordnance plant. The early manufacture Auto-Ordnance, Bridgeport guns, like their Savage counterparts, were fitted with the finned barrel and the adjustable Lyman rear sight. A similar AO prefix serial number was applied to the rear of the trigger frame.

The letters AO preceding the weaponвЂ™s serial number on the left side of the M1928A1 modelвЂ™s receiver will easily identify an M1928A1 Thompson that was produced in the Auto-OrdnanceвЂ™s Bridgeport, Connecticut plant. The 1928A1 Thompson Submachine Guns being produced at Auto-OrdnanceвЂ™s Bridgeport plant were identical mechanically and in appearance to those being made by Savage in Utica, New York. As a result, the Auto-Ordnance Corporation opened their own factory in 1941 to help fill the Ordnance DepartmentвЂ™s requirements for the weapon. Due to the complex construction of the Thompson, Savage had a difficult time keeping up with the ever-increasing demand. In 1939, Savage Arms was contracted by Auto-Ordnance to manufacture the weapon. 1928A1 Thompson Submachine GunДuring WWII there was an overwhelming demand for the Thompson Submachine Gun, to supply both U.S. The Thompson Submachine Gun ID Guide, Part V: The Auto-Ordnance, Bridgeport U.S.

Auto ordnance thompson serial number lookup