Valuation Guides Machine Guns Carl Gustaf M45
Published: May 26, 2025 | Updated: February 17, 2026
The Carl Gustaf M45, also known as the Swedish K, is a robust and highly regarded submachine gun, famously used by U.S. Navy SEALs during the Vietnam War.
Curious about how much your Carl Gustaf M45 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.
The Carl Gustaf M45, commonly known as the Swedish K, is a 9mm submachine gun known for its reliability, simplicity, and controllability. Produced in Sweden beginning in the 1940s, it gained a cult following among U.S. Navy SEALs and other special forces during the Vietnam era. Transferable examples in the U.S. are typically either original imports or tube guns built before 1986.
Origin
Sweden
Manufacturer
Carl Gustafs Stads Gevärsfaktori
Caliber
9×19mm Parabellum
Rate of Fire
600 rounds per minute
Notable Uses
Used by Swedish military, U.S. Navy SEALs, and other special forces
Transferable Carl Gustaf M45 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 $12,000 to $20,000, depending on configuration and provenance.
Registered Receiver
Estimated Value: $15,000 – $20,000
Tube Gun Builds
Estimated Value: $12,000 – $15,000
Market values reviewed by Chris Wing, Lead Firearms Valuation Specialist
Originality:
Transferable Carl Gustaf M45s with original receivers, parts, and factory markings typically command higher prices due to their authenticity and appeal to collectors.
Condition:
Clean, well-maintained Carl Gustaf M45 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 Carl Gustaf M45 to a specific military unit, wartime service, or historical event - collector interest and market value can greatly increase.
Restoration:
Whether your Carl Gustaf M45 has been refinished, restored or modified will significantly affect pricing. Original finishes are typically more desirable.
Transfer Status:
Transferrable Carl Gustaf M45s will hold a considerably higher value than their pre-86 or post-86 counterparts.
Receiver Type & Build Origin:
Carl Gustaf M45s built on original receivers typically hold more value than rewelds or aftermarket builds.
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