Published: May 26, 2025 | Updated: February 17, 2026
The M1A1 Thompson is a WWII-era submachine gun known for its rugged design, historical significance, and iconic profile. As a U.S.-made open-bolt .45 ACP firearm, transferable M1A1s remain highly sought after by collectors and history enthusiasts alike.
Curious about how much your M1A1 Thompson submachine 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.
The M1A1 Thompson is further-simplified variant of the M1 Thompson, widely issued to U.S. troops during WWII. It features an open-bolt blowback design, a fixed firing pin, rear sight protectors, simplified firing controls and was chambered in .45 ACP. Many transferable examples were registered post-war, with a portion of original military-issue guns falling under C&R status, driving up their collector value.
Origin
United States
Manufacturer
Auto-Ordnance (Bridgeport, CT), Savage Arms
Rate of Fire
600–700 rounds per minute
Notable Uses
WWII, U.S. military forces
Transferable M1A1 Thompson submachine 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 $18,000 to $34,000, depending on configuration and provenance.
Auto-Ordnance or Savage Military-Issue (C&R Eligible)
Estimated Value: $28,000 – $34,000
Registered Dewats Reactivated
Estimated Value: $22,000 – $26,000
Post-War Commercial Examples (West Hurley)
Estimated Value: $18,000 – $22,000
Market values reviewed by Chris Wing, Lead Firearms Valuation Specialist
Originality:
Transferable M1A1 Thompsons with original receivers, parts, and factory markings typically command higher prices due to their authenticity and appeal to collectors.
Condition:
Clean, well-maintained M1A1 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 M1A1 Thompson to a specific military unit, wartime service, or historical event - collector interest and market value can greatly increase.
Restoration:
Whether your M1A1 Thompson has been refinished, restored or modified will significantly affect pricing. Original finishes are typically more desirable.
Transfer Status:
Transferrable M1A1 Thompsons will hold a considerably higher value than their pre-86 or post-86 counterparts.
Receiver Type & Build Origin:
M1A1 Thompsons built on original receivers typically hold more value than rewelds or aftermarket builds.
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