Fleming HK21 Registered Receiver (RR) Transferable Machine Gun For Sale
Transferable HK21 Belt-Fed Machine Gun | 7.62 NATO | Excellent Condition | Jacksonville FL | Full Auto LLC
A rare opportunity to acquire an excellent condition Fleming HK21 registered receiver (RR) transferable machine gun, chambered in 7.62 NATO, currently on ATF Form 3 in Jacksonville, Florida. This firearm began as an HK91 registered receiver and has been professionally configured into an HK21 belt-fed platform, combining HK roller-delayed reliability with one of the most desirable transferable rifle-caliber machine gun systems available.
Transferable HK belt-fed machine guns are increasingly difficult to locate, and Fleming-registered receivers remain highly sought after by collectors, investors, and serious HK enthusiasts.
Offered from the inventory of Full Auto LLC, a Florida FFL/SOT specializing in transferable machine guns and rare NFA firearms.
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Quick Specifications
•Manufacturer: Fleming (registered receiver)
•Base platform: HK91 registered receiver conversion
•Configuration: HK21 belt-fed machine gun
•Caliber: 7.62 NATO
•Operating system: HK roller-delayed blowback
•Lower: Pinned and clipped
•Condition: Excellent
•Serial number: Original receiver serial number with later conversion engraving
•Transfer status: ATF Form 3
•Location: Jacksonville, Florida
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Included Accessories
•HK21 bipod
•One barrel
•One feed tray
•Cloth feed box
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Transfer Details
This transferable machine gun is:
•Currently on ATF Form 3
•Available for direct transfer to Florida residents on ATF Form 4
•Available for tax-exempt Form 3 transfer to qualified FFL/SOT dealers nationwide
•Owned inventory of Full Auto LLC (Florida FFL/SOT)
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Why the Transferable HK21?
Among transferable machine guns, the HK21 stands apart as one of the most versatile and desirable belt-fed platforms. The HK roller-delayed system provides smoother recoil impulse and controllability compared to many traditional belt-fed designs while maintaining legendary HK durability.
Key collector advantages:
•Extremely limited transferable supply due to 1986 registry closure
•Strong historical and investment appeal
•Highly desirable HK belt-fed configuration
•Increasing demand among advanced NFA collectors
Excellent-condition registered receiver examples rarely become available and represent a premium addition to any transferable machine gun collection.
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Purchase or More Information
👉 For more info or to purchase email myfullautollc@gmail.com
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About Full Auto LLC
Full Auto LLC is a Florida-based FFL/SOT located in Jacksonville specializing in transferable machine guns, HK platforms, belt-fed systems, and investment-grade NFA firearms. We provide professional ATF transfer support and secure nationwide transactions for collectors and dealers.