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Auto-Ordnance M1A1 Thompson

Ruben Mendiola

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Transferable M1A1 Thompson Submachine Gun, manufactured by Auto-Ordnance in Bridgeport

This is a beautiful M1A1 Thompson.  It features two Ordnance wheel markings stamped on the receiver nose and left side, as well as a "GHD" inspector stamp, indicating it was inspected under the supervision of Army Inspector of Ordnance Colonel Guy H. Drewery of the Springfield Ordnance District during WWII.  Such an inspector stamp is the easiest way to quickly identify an Auto-Ordnance Bridgeport manufactured M1/M1A1, since Savage M1’s were not marked with “S” prefixes like the earlier M1928A1 models, and are extremely similar to the M1’s manufactured by Auto-Ordnance in Bridgeport, CT. This weapon features the later style, protected Lyman rear sight, and has the later buttstock with a reinforcing crossbolt, and pin-style fire control levers. It is stamped “AO-45,” which indicates that it went through an official U.S. Ordnance Rebuild Program at Auto-Ordnance in Bridgeport in 1945, where it was also refinished as part of the standard rebuild process.  The weapon is also marked “US Property” on the rear top of the receiver.  The buttstock, pistol grip, and horizontal foregrip all have various minor dings  and handling wear from use, as does the receiver.  The receiver nose has also been prick punched to indicate barrel replacement during the arsenal rebuild.

This M1A1 Thompson certainly has a military service history, and would be a great shooter or collector piece. It is especially interesting to anyone who wants a higher cyclic rate, simpler design, made for our military during the dark days of WWII.


As with all DealerNFA, Inc. guns, this item is owned by us, and in stock at our Miami office, where it is available for inspection or eForm transfer to a dealer in your state.


Dealernfa, Inc 

Ruben Mendiola 



For the quickest response, please contact us through our toll free number 7 days a week, from 8:00 AM to 9:00 PM EST, or by email:





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Please visit our website for more detailed images that can be magnified at: 


www.dealernfa.com |


We are dealers and not Brokers.

All firearms are in stock under our control and owned by DealerNFA, Inc


With over 30 years in the Class III business, dealing in high quality legal firearms is not a hobby, but a profession - you will receive well deserved fast professional service. 


We are always looking for and paying top dollar for high quality legally registered machine gun, please either call me our my Toll Free line, email or fax. DealerNFA, Inc. pays the ATF transfer tax and payment is sent overnight. 



Florida residents are subject to Florida Sales tax.

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