The 1928A1 Thompson was a World War II-era refinement of the iconic submachine gun, retaining the drum magazine capability and iconic Cutts compensator while streamlining production.
Curious about how much your 1928A1 Thompson sub machine gun is worth? Whether you’re looking to sell or simply understand current pricing, we’ll help you assess the market value of your firearm.
Produced primarily during the early stages of World War II, the 1928A1 Thompson was a simplified version of the earlier commercial 1928, built for mass military deployment. Furthermore, it was the first type-classified version of the Thompson officially deployed by US forces. It kept many of the signature features of the 1928 model such as the finned barrel, Cutts compensator, top-mounted actuator and drum magazine slot in the receiver. The horizontal foregrip would become standardized and the finish simplified to a black oxide application. Later variants were further simplified into the M1 series.
Origin
United States
Manufacturer
Auto-Ordnance (Bridgeport, CT), Auto-Ordnance (West Hurley, NY), Savage Arms
Caliber
.45 ACP
Rate of Fire
600–700 rounds/min
Notable Uses
WWII U.S. military forces, Lend-Lease program
Transferable 1928A1 Thompson sub machine guns are highly sought after by NFA collectors and enthusiasts. Value is influenced by originality, condition, variant type and any unique historical markings. Most examples on the market range from $17,000 to $28,000, depending on configuration and provenance.
Post-War Commercial Examples (West Hurley)
Estimated Value: $18,000 – $22,000
Registered Dewats Reactivated
Estimated Value: $22,000 – $26,000
Auto-Ordnance or Savage Military-Issue (C&R Eligible)
Estimated Value: $28,000 – $34,000
Originality:
Transferable 1928A1 Thompsons with original receivers, parts, and factory markings typically command higher prices due to their authenticity and appeal to collectors.
Condition:
Clean, well-maintained 1928A1 Thompson machine guns in excellent mechanical and cosmetic condition will sell for significantly more than worn or modified examples.
Historical Markings / Provenance:
If there are markings or provenance that link your 1928A1 Thompson to a specific military unit, wartime service, or historical event - collector interest and market value can greatly increase.
Restoration:
Whether your 1928A1 Thompson has been refinished, restored or modified will significantly affect pricing. Original finishes are typically more desirable.
Transfer Status:
Transferrable 1928A1 Thompsons will hold a considerably higher value than their pre-86 or post-86 counterparts.
Receiver Type & Build Origin:
1928A1 Thompsons built on original receivers typically hold more value than rewelds or aftermarket builds.
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