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How Much is My M37 'Tanker' Worth?

The M37 'Tanker' is a belt-fed .30-06 machine gun developed as a tank-mounted alternative to the Browning 1919. Its unique left- or right-hand feed capability made it especially useful in armored vehicle applications.

Curious about how much your M37 'Tanker' heavy 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.

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About the M37 'Tanker'

The M37 would enter service in 1955 and would be issued as the primary medium machine gun in M48 and M50 Patton tanks. Built as a more adaptable replacement for the M1919 in armored roles, the M37 featured dual-feed options and could be fired manually, or from a solenoid fire control unit. Lighter versions, such as the M37C, would be mounted in helicopter gunships. Due to the US military’s replacement of the .30-06 cartridge for the new 7.62mm NATO round, some variants of the M37 (M37E1) would be converted to the new cartridge as a stop-gap measure. Ultimately, the M37 would be replaced by the M73 in 1959. Most transferable examples are post-war sideplate builds using a mix of surplus parts.

Origin

United States

Caliber

.30-06 Springfield

Original Manufacturers

Rock Island Arsenal and Sako Lowell

Sideplate Manufacturers

DLO, CATCO, RAMO, ERB and Pearl

Rate of Fire

450–550 rounds/min

Mount Type

Tank or pintle mount

Notable Uses

Korean War, Cold War-era armor

M37 'Tanker' Machine Gun Values & Variants

Transferable M37 'Tanker' heavy 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 $25,000, depending on configuration and provenance.

Common Variants & Value Ranges

  • M37 'Tanker' Sideplate Build

    Estimated Value: $17,000 – $20,000

  • C&R Models (Rock Island Arsenal, Sako Lowell)

    Estimated Value: $20,000 - $25,000

Factors That Influence M37 'Tanker' Values

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Originality:

Transferable M37 'Tanker's 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 M37 'Tanker' 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 M37 'Tanker' 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 M37 'Tanker' has been refinished, restored or modified will significantly affect pricing. Original finishes are typically more desirable.

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Transfer Status:

Transferrable M37 'Tanker's will hold a considerably higher value than their pre-86 or post-86 counterparts.

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Receiver Type & Build Origin:

M37s built on original recievers are worth more than rewelds, REWATS or sideplate builds.

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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.
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We’ll provide an offer on your firearm via email within 72 hours, and if accepted, provide instructions to complete the process.
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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 the value of a transferable M37 'Tanker' machine gun?
Most transferable M37s sell between $17,000 and $20,000, depending on parts origin, condition, and completeness of the setup.
Are all transferable M37s sideplate builds?
Yes, nearly all transferable M37 examples are sideplate builds due to the limited production of original guns before the 1986 registry cutoff.
Does the M37 have collector demand?
Yes, particularly among Browning enthusiasts and armored vehicle collectors, due to its unique design and role-specific history.
Can I sell my M37 'Tanker' legally?
Yes, if it's a transferable machine gun, it can be sold through an NFA Form 4 transfer. We handle compliance, shipping, and paperwork.
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).
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