8 Most Expensive Machine Guns Sold on GunBroker in October 2026

The most expensive machine guns sold on GunBroker in October 2026 showed strong collector demand for transferable NFA firearms, with registered sears, a pair of MP38 submachine guns, and AR-15/M16-pattern guns leading the way. This month’s top 8 machine-gun sales ranged from $25,025 to $41,775.

Bidding was active across most of the list. Seven of the eight sales drew 16 or more bids, led by an FN M249 SAW post-sample with 38 bids, while a transferable Special Weapons Co. MP38 closed on a single bid at $35,000.

What Were the Most Expensive Machine Guns Sold on GunBroker in October 2026?

The three most expensive machine guns sold on GunBroker in October 2026 were a transferable ACPAI steel drop-in auto sear at $41,775, a transferable S&H HK sear in a four-position trigger pack at $40,426, and a transferable Special Weapons Co. MP38 at $35,000. Registered sears took the top two spots, ahead of every complete machine gun on the list.

Top 8 Most Expensive Machine Guns Sold on GunBroker in October 2026

The list below is ranked from lowest to highest final sale price.

#8: Transferable Wilson Arms Swedish K “Port Said” L Series – Sold for $25,025 on GunBroker

Sold on October 29, 2026 (Item #1214294135), this transferable Wilson Arms Swedish K “Port Said” L Series opened this month’s machine gun ranking at $25,025. Starting at one cent with no reserve, it drew 20 bids from 15 bidders across 10 states. Built from an Egyptian Port Said parts kit, a licensed copy of the Swedish Carl Gustaf m/45, this L Series gun came with 10 magazines. The seller listed it as used.

#7: FN M249 SAW Post-Sample Machine Gun – Sold for $25,525 on GunBroker

Sold on October 18, 2026 (Item #1211211053), this factory FN M249 SAW post-May 1986 dealer sample brought $25,525 with its factory box. It drew 38 bids from 12 bidders across 9 states, the most bids of any machine gun on this list. Unlike the other guns here, this belt-fed post-sample was limited to qualified SOT holders, and the seller’s exit from the business meant it could transfer without a law enforcement demo letter. The seller listed it as used.

#6: Transferable Colt M16A1 Lower Receiver – Sold for $30,024 on GunBroker

Sold on October 11, 2026 (Item #1208926082), this fully transferable Colt M16A1 lower receiver in 5.56 NATO sold for $30,024. With bidding opening at $22,000, it drew 17 bids from 7 bidders across 6 states. Because the registered lower is the transferable part of the gun, the buyer received a genuine Colt foundation for a select-fire M16 build. The seller listed it as used.

#5: Transferable Wilson Arms MP38 Registered Tube – Sold for $31,025 on GunBroker

Sold on October 25, 2026 (Item #1212116854), this transferable Wilson Arms MP38 registered-tube submachine gun in 9mm realized $31,025 after a no-reserve penny start. It drew 16 bids from 10 bidders across 9 states. Period details, including a fluted milled tube receiver, Bakelite lower, underfolding stock, and hook-style charging handle, along with a WWII-era 32-round magazine, gave it a strong collector profile. The seller listed it as used.

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#4: Transferable SWD Polytech AK47 Machine Gun – Sold for $34,580 on GunBroker

Sold on October 4, 2026 (Item #1191421346), this transferable Polytech AKS-223 converted by SWD, Inc. into a 7.62x39mm AK47 machine gun brought $34,580 after a penny start. It drew 30 bids from 12 bidders across 7 states. Its spike bayonet and custom cherry furniture, with the original wood stock set included, set it apart from other transferable AK-pattern guns. The seller listed it as used.

#3: Transferable Special Weapons Co. MP38 – Sold for $35,000 on GunBroker

Sold on October 14, 2026 (Item #1208259959), this e-file-ready, transferable Special Weapons Co. MP38 sold for $35,000 on a single bid, the only single-bid sale among this month’s top machine guns. The milled-receiver MP38 preceded the stamped MP40, and this example carries non-matching German parts. The sale was also the buyer’s first gun purchase on GunBroker. The seller listed it as used.

#2: Transferable S&H HK Sear in 4-Position Trigger Pack – Sold for $40,426 on GunBroker

Sold on October 18, 2026 (Item #1207560380), this transferable S&H Arms HK sear, fitted into a four-position trigger pack in an HK21/HK21E housing, realized $40,426 after a no-reserve penny start. It drew 25 bids from 14 bidders across 9 states. With the proper adjustments, the pack can move between Heckler & Koch hosts such as the MP5/HK94, giving one registered sear the flexibility to run several HK platforms. The seller listed it as used.

#1: Transferable ACPAI Steel Drop-In Auto Sear (DIAS) – Sold for $41,775 on GunBroker

Sold on October 4, 2026 (Item #1201298163), this transferable steel drop-in auto sear (DIAS) made by ACP Arsenal International of Houston brought $41,775, making it the most expensive machine gun sold on GunBroker in October 2026. Opening at one penny with no reserve, it drew 27 bids from 17 bidders across 13 states, the widest bidder pool and geographic reach on this list. Steel DIAS units are valued for their durability, and this example had been test-fired in a semi-auto AR-15 host. The seller listed it as used.

October 2026 GunBroker Machine Gun Market Takeaways

Registered Sears Took the Top Two Spots

A steel AR-15/M16 drop-in auto sear and an HK sear in a four-position trigger pack outsold every complete machine gun on the list. Each is the registered, transferable component that allows a compatible host to fire automatically, which concentrated significant value in a small part.

MP38s and AR-Pattern Guns Appeared Twice

Two transferable MP38s placed third and fifth, one from Special Weapons Co. at $35,000 and one from Wilson Arms at $31,025. AR-15/M16-pattern items also appeared twice: the drop-in auto sear and a registered Colt M16A1 lower receiver.

Penny Starts Drew Deep Bidding

Five of the eight listings opened at one penny with no reserve, and each drew between 16 and 30 bids. Sienna Armory listed four of those five, including the top two sales.

Transferable Status Set the Price Floor

Every gun on the list except the FN M249 post-sample was fully transferable, and the entry point to the ranking sat at $25,025. The dealer-only M249 sold for $25,525, a result in line with the transferable guns around it.

Final Thoughts on October 2026 GunBroker Machine Gun Sales

The October 2026 machine gun results centered on registered, transferable firearms: an AR-15/M16 drop-in auto sear, an HK sear, a pair of MP38s, an SWD-converted AK47, a Colt M16A1 lower, and a Swedish K, along with a dealer-only FN M249 SAW. With final prices from $25,025 to $41,775, the month’s top 8 sales showed how transferability, originality, and platform flexibility shaped what collectors paid. Visit GunBroker.com to browse current machine gun listings.

Explore More GunBroker Market Reports

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