23 Most Expensive Guns Sold on GunBroker in May 2026 | Market Report

June 3, 2026 Article, Featured Auctions

This report is part of GunBroker’s monthly series tracking the most expensive guns sold on the platform.

Most Expensive Guns Sold on GunBroker in May 2026 | Market Report — *The most expensive guns sold on GunBroker in May 2026 highlight continued strength in the high-end collector firearms market*

The most expensive guns sold on GunBroker in May 2026 highlight continued strength in the high-end collector firearms market, with transferable machine guns, NFA conversion devices, commemorative Barrett rifles, and historic Colt Thompsons commanding premium prices. This month’s top 23 sales ranged from $21,675.00 to $52,515.51, with Colt M16 variants, Thompson submachine guns, and transferable machine gun components appearing repeatedly throughout the rankings.

Auction data revealed a mix of highly competitive bidding and targeted acquisitions. Several listings generated significant collector interest, including a FURR 1874 Gatling Gun that attracted 81 bids and a Colt SP1 Machine Gun that drew 49 bids. Other high-value firearms sold with minimal bidding activity, suggesting informed buyers pursuing scarce opportunities at established market valuations.

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

The most expensive gun sold on GunBroker in May 2026 was a Hard Times Armory HTA Steel Drop-In Auto Sear (DIAS) at $52,515.51. Other top sales included a Colt U.S. Navy Model 1928 Overstamp Thompson Submachine Gun at $51,525.00 and a Colt 1928 Navy Thompson .45 ACP at $51,025.00. Together, the month’s top 23 results offer a snapshot of pricing trends, collector demand, and buyer behavior at the top end of the market.

Below is a ranked breakdown of the most expensive firearms sold on GunBroker in May 2026.

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

#23: M16 Registered Receiver 5.56mm Machinegun — Sold for $21,675.00 on GunBroker

Sold on May 31, 2026 (Item #1175454382), this transferable M16 registered receiver machine gun brought $21,675.00. The auction drew 26 bids from 13 bidders across 10 states, indicating broad collector interest.

As a transferable machine gun registered prior to the 1986 cutoff, the listing reinforces the continued strength of legally transferable NFA firearms. The seller listed the firearm as used.

*Hard Times Armory HTA Steel Drop-In Auto Sear DIAS M16 AR15*

Browse Machine Guns

#22: Infinity SVI Double G 9mm — Sold for $24,000.00 on GunBroker

Sold on May 28, 2026 (Item #1178997823), this Infinity SVI Double G 9mm realized $24,000.00. The auction drew 21 bids from 7 bidders across 7 states, reflecting strong demand for premium competition-oriented pistols.

Premium Infinity pistols continue to command strong prices among competition shooters and collectors, with limited-production configurations attracting sustained demand. The seller listed the firearm as factory new.

Browse Infinity SVI

#21: 10/22 Machine Gun AMT 25/22 Lightning .22 LR — Sold for $24,050.00 on GunBroker

Sold on May 25, 2026 (Item #1176962611), this AMT 25/22 Lightning machine gun closed at $24,050.00. The auction generated 9 bids from 5 bidders across 4 states.

Professionally converted prior to the 1986 machine gun registry cutoff, this transferable rimfire platform benefited from the scarcity attached to open-bolt full-auto systems. The result reflects the persistent premium attached to legally transferable NFA firearms. The seller listed the firearm as used.

*10/22 Machine Gun AMT 25/22 Lightning .22 LR*

Browse Machine Guns

#20: PAWS ZX16-A1 AR-15 NFA Full-Auto — Sold for $24,775.00 on GunBroker

Sold on May 3, 2026 (Item #1171402298), this PAWS ZX16-A1 transferable machine gun brought $24,775.00. The auction drew 42 bids from 15 bidders across 9 states, signaling strong competitive interest.

As a transferable registered-receiver AR-15 platform, the listing reflects sustained demand for legally transferable machine guns built on one of America’s most recognizable rifle designs. The seller listed the firearm as used.

Browse Machine Guns

#19: SAR 48 Match LMG Transferable HBAR Israeli Parts FAL — Sold for $25,700.00 on GunBroker

Sold on May 31, 2026 (Item #1178117400), this transferable SAR 48 Match LMG realized $25,700.00.

The strong result with minimal competition suggests a targeted buyer scenario at a pre-established valuation. Transferable FAL-pattern machine guns remain scarce relative to more common transferable platforms. The seller listed the firearm as used.

*SAR 48 Match LMG Transferable HBAR Israeli Parts FAL*

Browse Machine Guns

#18: Strayer-Voigt SVI Infinity Double G 9mm — Sold for $27,025.00 on GunBroker

Sold on May 31, 2026 (Item #1179189733), this Strayer-Voigt SVI Infinity Double G 9mm brought $27,025.00. The auction drew 20 bids from 4 bidders across 4 states.

The high level of bidding reflects continued demand for premium custom competition pistols. Limited-production Infinity handguns remain highly sought after by both shooters and collectors. The seller listed the firearm as used.

Browse Semi-Auto Pistols

#17: Colt SP1 Machine Gun 14.5″ .223/5.56mm — Sold for $27,385.00 on GunBroker

Sold on May 10, 2026 (Item #1171686720), this transferable Colt SP1 machine gun closed at $27,385.00. The auction generated 49 bids from 22 bidders across 13 states, one of the highest participation totals on this month’s list.

As a transferable Colt platform with documented factory origins, the firearm aligns with continued collector preference for original-production examples. Heavy participation suggests the market remains highly liquid among serious buyers. The seller listed the firearm as used.

Colt SP1 Machine Gun 14.5" .223/5.56mm — *Colt SP1 Machine Gun 14.5″ .223/5.56mm*

Browse Colt Machine Guns

#16: FURR 1874 Gatling Gun — Sold for $29,525.00 on GunBroker

Sold on May 16, 2026 (Item #1174794817), this FURR 1874 Gatling Gun realized $29,525.00. The auction attracted 81 bids from 26 bidders across 14 states, the highest bid count recorded among the month’s top sales.

The combination of craftsmanship, rarity, and presentation quality broadened collector appeal well beyond traditional firearms enthusiasts. The high level of bidding reflects exceptional interest in unique, display-worthy firearms and historical reproductions. The seller listed the firearm as used.

Browse Gatling Guns

#15: Colt BOA #564 — Sold for $29,995.00 on GunBroker

Sold on May 6, 2026 (Item #1174898557), this Colt BOA revolver realized $29,995.00. The auction drew 13 bids from 12 bidders across 10 states.

As one of only 600 Colt BOA revolvers produced, this unfired example retained its original matching box, factory packaging, and paperwork. High-condition collector-grade Colts continue to command premiums due to rarity, originality, and long-term collector demand. The seller listed the firearm as new old stock.

Browse Colt Revolvers

#14: Linebaugh Trio in .458 Maximum, .475 Long, and .500 Long — Sold for $30,000.00 on GunBroker

Sold on May 17, 2026 (Item #1172925112), this custom Linebaugh revolver trio brought $30,000.00.

Despite receiving only a single bid, the final price reflects the specialized appeal of custom big-bore revolvers built by one of the most respected names in the field. The strong result with minimal competition suggests a targeted acquisition by a knowledgeable collector. The seller listed the firearms as used.

*Linebaugh Trio in .458 Maximum, .475 Long, and .500 Long*

Browse Revolvers

#13: Barrett Model 82A1 & M107A1 America’s 250th Series Set (LIBERTY2026/FREEDOM2026) — Sold for $30,275.00 on GunBroker

Sold on May 17, 2026 (Item #1169394359), this Barrett commemorative matched rifle set realized $30,275.00. The auction drew 2 bids from 2 bidders across 2 states.

Limited production and commemorative significance continue to drive collector interest in special-edition Barrett rifles. Even with limited bidding activity, the final price reflects the platform’s established collector value. The seller listed the firearm as factory new.

Barrett Model 82A1 & M107A1 America's 250th Series Set — *Barrett Model 82A1 & M107A1 America’s 250th Series Set*

Browse Barrett Rifles

🎥 Binge Watch GunBroker Product Spotlight Videos

#12: Colt M16 Full Auto Machine Gun .223/5.56mm NATO Rifle — Sold for $31,025.00 on GunBroker

Sold on May 10, 2026 (Item #1171620511), this Colt M16 machine gun brought $31,025.00. The auction generated 42 bids from 17 bidders across 10 states.

As a transferable Colt M16 with documented agency markings and classic A1-era configuration, the listing reflects continued strength in the transferable machine gun market. With fixed supply and steady demand, transferable examples continue to anchor high-value sales. The seller listed the firearm as used.

*Colt M16 Full Auto Machine Gun .223/5.56mm NATO Rifle*

Browse Colt Machine Guns

#11: Korth Auto Pistol in 9mm PARA — Sold for $32,000.00 on GunBroker

Sold on May 28, 2026 (Item #1168349438), this Korth Auto Pistol in 9mm PARA closed at $32,000.00.

With fewer than 300 examples produced and even fewer chambered in 9mm, the pistol represents one of the rarest modern semi-automatic collector handguns. Scarcity, condition, and originality combined to support a premium result. The seller listed the firearm as used.

Browse Korth

#10: Colt M16A1 Complete Lower Receiver — Sold for $33,024.00 on GunBroker

Sold on May 17, 2026 (Item #1176061500), this Colt M16A1 complete lower receiver realized $33,024.00. The auction drew 20 bids from 5 bidders across 4 states.

As a transferable Colt M16A1 component, the listing reinforces the continued value attached to original Colt machine gun platforms. Factory examples continue to command premiums over converted counterparts. The seller listed the firearm as used.

Browse Colt M16A1 Complete Lower Receiver

#9: Colt M16A1 Complete Lower Receiver — Sold for $33,025.00 on GunBroker

Sold on May 3, 2026 (Item #1172555822), this Colt M16A1 complete lower receiver brought $33,025.00. The auction drew 28 bids from 8 bidders across 6 states, indicating strong collector interest.

As an original Colt transferable machine gun component, the listing reflects continued demand for factory Colt M16 platforms. Original-production examples remain highly desirable among collectors and NFA enthusiasts. The seller listed the firearm as used.

Browse Colt M16A1 Complete Lower Receiver

#8: P.A.W.S. ZX16A1 Machine Gun (M16) Olympic Arms — Sold for $34,000.00 on GunBroker

Sold on May 13, 2026 (Item #1172874225), this P.A.W.S. ZX16A1 machine gun realized $34,000.00.

Despite selling as a fixed-price listing, the result reflects the established value of transferable M16-pattern machine guns. With fixed supply and steady demand, transferable examples continue to command premium pricing. The seller listed the firearm as used.

*P.A.W.S. ZX16A1 Machine Gun (M16) Olympic Arms*

Browse Machine Guns

#7: Qualified Mfg Portuguese Registered Receiver HK51 — Sold for $36,026.00 on GunBroker

Sold on May 29, 2026 (Item #1179477302), this Qualified Manufacturing Portuguese registered receiver HK51 brought $36,026.00. The auction generated 42 bids from 13 bidders across 9 states.

The high level of bidding reflects continued collector demand for transferable HK-pattern machine guns. Scarcity, compact configuration, and transferable status combined to drive strong competition among buyers. The seller listed the firearm as used.

*Qualified Mfg Portuguese Registered Receiver HK51*

Browse Machine Guns

#6: Fleming HK Auto Sear — Sold for $43,500.00 on GunBroker

Sold on May 15, 2026 (Item #1176403357), this Fleming HK Auto Sear realized $43,500.00. The auction drew 14 bids from 5 bidders across 3 states.

Transferable HK auto sears remain among the most versatile and desirable NFA conversion devices. The result reinforces the continued strength of the transferable machine gun market and the premium attached to scarce registered components. The seller listed the item as used.

Browse Sears

#5: Barrett Model 82A1 & M107A1 Limited Edition America’s 250th Series Set 1776 — Sold for $47,026.00 on GunBroker

Sold on May 15, 2026 (Item #1169370206), this Barrett America’s 250th Series commemorative matched rifle set brought $47,026.00. The auction generated 9 bids from 6 bidders across 6 states.

Featuring the highly desirable serial numbers LIBERTY1776 and FREEDOM1776, this limited-production set combined rarity, presentation quality, and historical significance. Commemorative Barrett firearms continue to attract strong collector interest when paired with exceptional provenance and presentation. The seller listed the firearm as used.

arrett Model 82A1 & M107A1 Limited Edition America's 250th Series Set 1776 — *arrett Model 82A1 & M107A1 Limited Edition America’s 250th Series Set 1776*

Browse Barrett Rifles

#4: Pre-’86 John R. Stemple Auto Sear (DIAS) — Sold for $49,025.00 on GunBroker

Sold on May 19, 2026 (Item #1175618442), this John R. Stemple Drop-In Auto Sear (DIAS) realized $49,025.00. The auction drew 28 bids from 5 bidders across 3 states.

As a pre-1986 transferable DIAS, the listing reflects the persistent premium attached to legally transferable machine gun conversion devices. Fixed supply and broad compatibility continue to make transferable auto sears highly sought after within the NFA market. The seller listed the item as used.

Pre-'86 John R. Stemple Auto Sear — *Pre-’86 John R. Stemple Auto Sear*

Browse Sears

#3: Colt 1928 Navy Thompson .45 ACP — Sold for $51,025.00 on GunBroker

Sold on May 24, 2026 (Item #1173160336), this Colt 1928 Navy Thompson chambered in .45 ACP brought $51,025.00. The auction generated 46 bids from 7 bidders across 5 states, signaling significant collector demand.

With documented provenance tracing back to the Federal Reserve Bank in Richmond, Virginia, this historic transferable Thompson combined originality, rarity, and historical significance. Provenance and authenticity continue to drive premium pricing for collector-grade Thompson submachine guns. The seller listed the firearm as used.

Browse Thompson Machine Guns

#2: Colt U.S. Navy Model 1928 Overstamp Thompson Submachine Gun — Sold for $51,525.00 on GunBroker

Sold on May 6, 2026 (Item #1171418061), this Colt U.S. Navy Model 1928 Overstamp Thompson Submachine Gun realized $51,525.00. The auction drew 16 bids from 5 bidders across 4 states.

Originally produced as a Colt Model of 1921 and later converted to U.S. Navy 1928 specifications, this example featured matching serial numbers and accompanying factory documentation. Historic Colt Thompsons with documented provenance remain among the most sought-after transferable firearms in the collector market. The seller listed the firearm as used.

Browse Colt Machine Guns

#1: Hard Times Armory HTA Steel Drop-In Auto Sear DIAS M16 AR15 — Sold for $52,515.51 on GunBroker

Sold on May 3, 2026 (Item #1170948794), this Hard Times Armory HTA Steel Drop-In Auto Sear (DIAS) brought $52,515.51. The auction generated 45 bids from 19 bidders across 12 states, reflecting broad nationwide demand.

As a transferable steel-construction DIAS, the listing represents one of the most desirable AR-15/M16 conversion devices available to collectors. The high level of bidding reinforces the continued strength of the transferable machine gun market and the premium attached to scarce NFA assets. The seller listed the item as used.

Browse Sears

May 2026 GunBroker Market Takeaways

Transferable Machine Guns Continued to Dominate the Top End

The majority of the most expensive guns sold on GunBroker in May 2026 were transferable machine guns, registered receivers, auto sears, and other NFA-regulated firearms. With fixed supply and sustained collector demand, transferable machine guns continue to define the upper tier of the firearms market.

Colt Led the Rankings

Colt appeared throughout the list, including M16 variants, M16A1 receivers, SP1 platforms, and two historic Thompson submachine guns. The brand’s combination of military heritage, collector recognition, and transferable status continues to drive premium pricing.

Bidding Activity Varied Dramatically

Auction participation ranged from a single bid on several high-value listings to 81 bids on the FURR 1874 Gatling Gun. The variation highlights two distinct buyer behaviors: highly competitive auctions for broadly desirable collector pieces and targeted acquisitions where informed buyers were willing to pay established market values.

NFA Components Remained Exceptionally Valuable

Transferable auto sears and DIAS devices occupied several of the highest positions on the list, including the top overall sale. These components continue to benefit from legal scarcity, versatility, and strong long-term collector demand.

Condition, Rarity, and Provenance Drove Premium Results

Across all categories, the strongest prices were achieved by firearms that combined rarity with originality, exceptional condition, documented history, or transferable status. Historic Thompsons, commemorative Barrett sets, and rare production handguns all benefited from these factors.

Price Range Reflected a Strong High-End Market

The top 23 sales ranged from $21,675.00 to $52,515.51, with a notable concentration of results between $24,000 and $34,000. The spread suggests a healthy and active collector market supported by both competitive bidding and targeted high-value acquisitions.

Final Thoughts on May 2026 GunBroker Sales

May 2026 reinforced the strength of the high-end collector firearms market on GunBroker, particularly for transferable machine guns, historic Colt firearms, and scarce NFA components. With five listings exceeding $43,000 and the top sale surpassing $52,000, demand remains concentrated among serious collectors competing for limited-supply assets.

For sellers considering a high-end firearm, current market conditions continue to favor well-presented listings with strong provenance, originality, rarity, and legal transferability. As May demonstrated, collectors remain willing to pay significant premiums for the right opportunity.