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How Much is My Carl Gustaf M45 Worth?

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.

About the Carl Gustaf M45

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

Carl Gustaf M45 Machine Gun Values & Variants

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.

Common Variants & Value Ranges

  • Registered Receiver

    Estimated Value: $15,000 – $20,000

  • Tube Gun Builds

    Estimated Value: $12,000 – $15,000

Factors That Influence Carl Gustaf M45 Values

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Originality:

Transferable Carl Gustaf M45s with original receivers, parts, and factory markings typically command higher prices due to their authenticity and appeal to collectors.

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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.

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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.

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Restoration:

Whether your Carl Gustaf M45 has been refinished, restored or modified will significantly affect pricing. Original finishes are typically more desirable.

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Transfer Status:

Transferrable Carl Gustaf M45s will hold a considerably higher value than their pre-86 or post-86 counterparts.

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Receiver Type & Build Origin:

Carl Gustaf M45s built on original receivers typically hold more value than rewelds or aftermarket builds.

Ready to get an offer on your Carl Gustaf M45 machine gun?

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About Us

Our mission is to make the process of selling your firearm as easy and convenient as possible.

Selling a firearm can be time-consuming and legally complex, especially for machine guns. At webuyguns.com, we streamline the process by purchasing directly from you, saving you time and ensuring a legally compliant, hassle-free transaction. With decades of experience, we provide fair market evaluations and encourage you to compare our offers locally to see the value we bring.

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Our streamlined process makes selling your firearm easy. If you accept our offer, simply package your firearm using the prepaid shipping label we provide. We’ll keep you updated with email notifications at every stage. No hassle, no guesswork—just a smooth, straightforward experience on your terms.

Steps
16 cloud upload Tell us what you have.
Fill out a short form and upload a few photos. This helps us identify what you have. We review your information and images to assess the condition and value of your firearm.
16 currency dollar We make you an offer.
We’ll provide an offer on your firearm via email within 72 hours, and if accepted, provide instructions to complete the process.
16 comments We keep you informed at every stage.
We’ll provide a shipping label and keep you updated with email notifications tracking recieving the firearm, reviewing its condition and issuing payment.
Item Submitted
Colt Python: Minor scratches with approximately 200 rounds through it.
357 Mag Very Good
Offer Made
Ref # 0973457 .357 magnum Colt Python in very good condition.
$1,300
Offer Approved
Ref # 0973457 Colt Python
Item Shipped
Ref # 0973457 Colt Python
Tracking # 9610 1385 1287 3021
Item Received
Ref # 0973457 Colt Python
Customer Paid
ACH for $1,300 issued to customer account.

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Frequently asked questions

If you can’t find the answer you’re looking for, reach out to customer support or view all FAQ's

Is this legal?
Yes. We are a federally licensed firearms dealer located in the state of Indiana. You, the seller, are covered under our license just as you would be if you walked into our store with the item. There are no laws preventing you from selling your firearm to us.
What is a Carl Gustaf M45 worth?
Original Swedish K examples typically sell for $15,000 to $20,000, while tube gun builds fall closer to $12,000 to $15,000.
How can I tell if my M45 is a tube gun or factory receiver?
Tube guns are U.S.-made recreations, often lacking original Swedish markings and having modern welds or serials.
Can I sell my Carl Gustaf M45
Yes, if it was registered before May 19, 1986. We handle all paperwork and provide prepaid shipping and legal transfer support.
How long are offers good for?
Offers are valid for 14 days.
Can I sell multiple firearms?
Absolutely! Once firearm information has been submitted, you will have the ability to submit additional firearms for review and offers. These firearms will be viewable from your user panel, which you access from your initial offer email. If you have a large number of firearms or an estate, it's best to contact us directly (just to save you a lot of time).