Section I	Section II	Section III	Section IV	Section V	Section VI
History of Iver Johnson Arms 1977-2012	Models	Serial Numbers & Dates of Manufacture	Receivers & Markings	Parts	Brochures, Price Lists, Fliers & Manuals (Downloads)

Section III Serial Numbers & Dates of Manufacture Understanding the Meaning of "Date of Manufacture" The ATF Definition used in the AFMER Reports ATF files a yearly report to U.S. Congress on the number of firearms manufactured by each manufacturer. This report is called the Annual Firearms Manufacture & Export Report (AFMER). This report states, "For the purpose of this report only, "Production" is defined as firearms, including separate frames or receivers, actions or barreled actions, manufactured and disposed of in commerce during the calendar year." The phrase "manufactured and disposed of in commerce" infers everything was manufactured and sold within the same calendar year, which is rarely the case in manufacturing. All parts of a carbine, and all other firearms, are manufactured separately and completed at different times. When all of the parts are assembled into a functioning firearm ready to be sold, the date of manufacture of the firearm is usually the first day it is ready to be sold. None of the companies that have used the Iver Johnson name have provided any of the information you see on this entire website, this page included. Reconstruction of the dates of manufacture has been based on the history of the company, markings on the receivers, the firearm's serial number and the AFMER reports. Collecting and analyzing the serial numbers and their markings has been an ongoing process for many years. What's offered here may change slightly as more information becomes available. The Charts Since the two letter prefix that starts each serial number was based on the model and various models were manufactured concurrently, each two letter prefix has it's own chart showing that particular prefix's dates of manufacture. Serial Number Prefixes Prefix Model Finish AA Military & Paratrooper blued steel BA Enforcer blued steel BS Enforcer stainless steel CA M2 Select Fire various DD D-Day Commemorative blued steel EA 5.7mm Johnson blued steel EAA Enforcer blued steel EF Enforcer blued steel ES 5.7mm Johnson stainless steel FF French Short blued steel J M1 Carbine blued steel JJ 9mm Parabellum blued steel SS Military & Paratrooper stainless steel WW WWII Commemorative blued steel Never say Never, Never say Always Production is not Perfection (especially in the months prior to a bankruptcy) Rather than guess a specific year for a specific serial number the charts below present a serial number range and the years that range started and ended based on the markings and additional resources. Most charts narrow the time frame to within a period of 4 years or less. Conclusions as to the specific year within the time frame a particular number was manufactured are left for the reader to decide. Serial Numbers Dates of Manufacture AA Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   1978 AA00001     1979   AA16949 highest s/n obs. to date 1980 AA17490   lowest s/n obs. to date 1981       1982       1983   AA41046 highest s/n obs. to date   Iver Johnson Arms Jacksonville, AR   1983 AA41127A AA44090A NJ receivers & s/n, sold by AR   1983 AA44763   lowest s/n obs. to date 1984       1985       1986   AA64781 highest s/n obs. to date   AMAC Jacksonville, AR   1987 AA64981   lowest s/n obs. to date 1988       1989       1990   AA66090 highest s/n obs. to date 1991 AA66271   lowest s/n obs. to date 1992   AA73377 highest s/n obs. to date A few receivers with the markings of Iver Johnson over NJ have been observed sporadically among the carbines manufactured in AR by both Iver Johnson Arms and AMAC. Surplus receivers in various states of manufacture, various markings, and s/n's bought from Numrich Gun Parts have been built into carbines by other companies and by owners. Serial Numbers Dates of Manufacture BA Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   1978 BA00001     1979       1980       1981   BA05567 highest s/n obs. to date   Iver Johnson Arms Jacksonville, AR   1983   BA05708 only s/n obs. to date, switched to EF prefix ATF records indicate 4,524 Enforcers were manufactured/sold between 1978 and 1981. The higher serial number quantity may include rejects and those left over and sold to the Jacksonville, AR investors. Serial Numbers Dates of Manufacture BS Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   1978 BS00001     1979       1980   BS00306 highest s/n obs. to date Refer note under BA prefix above. Serial Numbers Dates of Manufacture CA Prefix Year Start End Notes   Iver Johnson Arms Jacksonville, AR   1983 CA00940A CA00959A receivers mfg in NJ, used by AR, lowest & highest s/n obs. to date 1983 CA01017 CA01315 mfg in AR, lowest & highest s/n obs. to date Model M2 Serial Numbers Dates of Manufacture DD Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   1980 DD00001 DD09977 highest s/n obs. to date Serial Numbers Dates of Manufacture EA Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   1982 EA00001     1983   EA00621 highest s/n obs. to date The EA prefix was used for those carbines chambered for 5.7mm Johnson. Serial Numbers Dates of Manufacture EAA Prefix Year Start End Notes   Iver Johnson Arms Jacksonville, AR   1986 EAA62848 EAA63659   These were receivers with the New Jersey markings and AA prefix absent the serial numbers left over from New Jersey. Serial numbers were added by Jacksonville, AR in 1986. Jacksonville, AR selected these randomly for use as Enforcer receivers and added the E prior to the AA to signify the Enforcer model. The numbers should not be viewed as a sequence. These were built into Enforcers in the months preceding Chapter 11 Bankruptcy in October 1986. Serial Numbers Dates of Manufacture EF Prefix Year Start End Notes   Iver Johnson Arms Jacksonville, AR   1983 EF00001     1984       1985       1986   EF00364 highest s/n obs. to date   AMAC Jacksonville, AR   1987 EF00338   lowest s/n obs. to date 1988       1988   EF00754 highest s/n obs. to date Serial Numbers Dates of Manufacture ES Prefix Year Start End Notes   Iver Johnson Arms Jacksonville, AR   1983 ES00001A ES00072A highest s/n obs. to date All of these carbines have the markings of Middlesex, NJ, all are stainless steel. The A suffix indicates they were surplus obtained from New Jersey and sold by Jacksonville, AR. Serial Numbers Dates of Manufacture FF Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   ? ? ? production in the early 1980's   Iver Johnson Arms Jacksonville, AR   ? FF10548 FF11940 lowest & highest s/n obs. to date Cartridge was caliber .30 Short, for export to France. Receivers with these markings were purchased from the Iver Johnson bankruptcy sale and sold by Numrich Gun Parts. Serial Numbers Dates of Manufacture J Prefix Year Start End Notes   Iver Johnson Arms Warwick, Vermont   2007 J900001 J900127 highest s/n obs. to date, year could be 2006 Serial Numbers Dates of Manufacture JJ Prefix Year Start End Notes   Iver Johnson Arms Jacksonville, AR   1985 JJ0001 JJ02137 highest s/n obs. to date Serial Numbers Dates of Manufacture SS Prefix Year Start End Notes   Iver Johnson Arms Middlesex, New Jersey   1982 SS00001     1983   SS04465 highest s/n obs. to date   Iver Johnson Arms Jacksonville, AR   1983   SS04535A only s/n obs. to date All stainless steel carbines with the name of Iver Johnson are marked Iver Johnson Arms over Middlesex, NJ over the breach. The one attributed to Arkansas has the Middlesex, NJ markings and can be identified as one Jacksonville, AR obtained from New Jersey by the A suffix. Serial Numbers Dates of Manufacture WW Prefix Year Start End Notes   Iver Johnson Arms Jacksonville, AR   1985 WW0001     1986   WW01945 highest s/n obs. to date The American Historical Foundation first advertised this commemorative in the January 1985 issue of The American Rifleman as a limited production of 2500. Production was based on each order received and completed before Iver Johnson filed for Chapter 11 bankruptcy October 21, 1986.