Visiting the Lao National Museum in Vientiane, I was stopped in my tracks by one particularly bizarre firearm on display. At first glance, it appeared familiar, yet profoundly wrong, as if two different weapons from different eras had been forcibly merged. The receiver and trigger group were clearly from a Sten submachine gun, the famous British wartime “tube gun”, but protruding from it was a heavy barrel with an attached bipod more commonly associated with the U.S. M60 machine gun.
The result is best described as a “Frankensten”, a Sten-based hybrid weapon assembled from mismatched components drawn from different weapons, periods, and supply chains. In this case, the visual dissonance is striking, a Second World War-era submachine gun foundation married to hardware more at home in the jungles of the Vietnam War.
The museum case label adds another layer of intrigue. It describes the exhibit as:
“Firearms use by French soldiers fighting with the Lao people in 1945–1954”,
and identifies the weapon as an “M19 Gun”.
That caption is a valuable starting point, but technically, it does not sit comfortably with what is physically in the case.
The Problem with the Label
There is no standard or widely recognised small arm designated “M19” that corresponds to the weapon on display, particularly within the historical and technical context of the First Indochina War. The term may represent a shorthand or mistranscription, possibly a loose reference to the Browning M1919, a machine gun known to have been employed by French forces in Indochina. Equally, it may reflect later cataloguing assumptions applied to an object that resisted straightforward classification.
The label’s chronological framing also warrants scrutiny. While the Sten submachine gun component of the hybrid could plausibly date to the late 1940s or early 1950s, the weapon’s present configuration does not align cleanly with the 1945–1954 period cited. The presence of components associated with later U.S. service suggests that the firearm, as currently constituted, represents a form assembled or modified after that timeframe. This indicates that the label is likely intended to situate the object within a broader historical narrative rather than to identify the moment when the weapon acquired its present form.
Further uncertainty arises from how the firearm is displayed. On Sten submachine guns, identifying markings, including model designation, manufacturer, and serial number, are typically located on the receiver around the magazine housing, the buttstock, and occasionally on internal components such as the bolt or barrel. In this instance, those critical areas are obscured by the mounting of the exhibit, preventing verification of manufacturing details solely through visual inspection. The absence of a visible British broad arrow proof mark further constrains confident attribution.
Taken together, these factors suggest that the museum label should be interpreted as a contextual narrative marker, rather than as a precise technical identification. The object itself appears to encapsulate multiple phases of Laos’s twentieth-century conflicts, rather than belonging neatly to a single war, date range, or designation.
There is, however, one further possibility that warrants consideration. The object on display may not represent a weapon that ever existed in this exact configuration as a functional field arm, but instead a composite or interpretive assemblage created for exhibition purposes.
In museum practice, particularly where collections are incomplete or provenance is fragmentary, it is not unusual for displays to include reconstructed or composite objects. Such assemblages are often used to illustrate broader historical themes, to convey the character of conflict-era matériel, or to fill interpretive gaps where complete artefacts are unavailable. In these circumstances, curatorial intent is typically illustrative rather than technical, prioritising narrative clarity and visual communication over strict artefact taxonomy.
If this interpretation applies here, the Frankensten may function as a representational object, combining recognisable elements from different phases of Laos’s twentieth-century conflicts to communicate themes of improvisation, scarcity, and the long overlap of colonial and Cold War warfare. This would help explain both the weapon’s unusual configuration and the imprecision of its labelling, as well as the absence of verifiable manufacturing or proof marks.
Significantly, this possibility does not diminish the historical value of the exhibit. Even as a constructed or partially reconstructed object, it reflects a genuine aspect of the Lao wartime experience, namely the continual recycling, adaptation, and repurposing of weapons across decades of conflict.

Systemic labelling issues in the display case
The hybrid Sten–M60 is not an isolated case within the display. Several other firearms in the same case appear to be imprecisely identified or simplistically described, indicating that the captions prioritise narrative clarity over technical specificity.
Based on visual assessment:
- Item 1 is labelled as an “M1936 Rifle”, but appears to be a MAS-36 LG48, the MAS-36 configured for rifle-grenade launching.
- Item 2, also labelled “M1936 Rifle”, is more accurately identified as a MAS-36/CR39 paratrooper rifle, distinguishable by its folding aluminium stock.
- Item 3, the subject of this article, is labelled an “M19 Gun”, despite clearly being a Sten-pattern submachine gun in a highly unconventional hybrid configuration.
- Item 4 appears to be a Sten Mk II fitted with a wire stock, yet is labelled as an “M37 Gun”.
- Item 5 is a M1917/P14 rifle, labelled as a “Winchester 59959 Gun”, apparently substituting a manufacturer or serial reference for a formal model designation.
Collectively, these discrepancies suggest that the display labels were likely derived from secondary documentation, translated sources, or legacy inventories, rather than from systematic technical examination of each artefact.
A Short Backstory, Laos 1945 to 1975
Most readers will not have the Lao conflict context in mind, so here is a brief run-through of how Laos moved from colonial-era turbulence to a Cold War battlefield.
1945 to 1954, the end of empire and the Indochina War
- 1945: Japan’s defeat ends the wartime occupation of French Indochina. In the power vacuum, Lao political movements push for greater autonomy. French authority returns unevenly, and the region is unstable.
- 1946–1954: The First Indochina War is fought primarily in Vietnam, but Laos is part of the same theatre of decolonisation and revolution. Communist-aligned movements, including the Pathet Lao, formed and gained momentum, supported by Vietnamese communist networks.
- Weapons context: Arms in circulation are a patchwork, French issue, British and American wartime surplus, captured Japanese stocks, and locally repaired or improvised weapons. This is a key reason why a WWII-era design like the Sten could plausibly show up in Lao hands.
1954 to the early 1960s, independence and a fragile political settlement
- 1954: The Geneva settlement reshapes the region after the French defeat. Laos becomes formally independent but politically fragile. The Pathet Lao retains influence and armed capacity in parts of the country.
- Late 1950s: Coalition arrangements and political compromises repeatedly break down. Laos becomes a Cold War pressure point, with external support flowing to competing Lao factions.
1960s to 1975, the Laotian Civil War and the “Secret War”
- 1960–1975: Laos is pulled into the wider Vietnam War. The conflict is commonly called the Laotian Civil War, but it is also inseparable from North Vietnamese strategy and U.S. counter-efforts.
- North Vietnamese role: North Vietnamese forces use Lao territory as part of the broader logistics and manoeuvre system supporting the war in Vietnam. This brings sustained fighting and external military presence.
- U.S. involvement: The United States supports anti-communist forces, including the Royal Lao Government and allied irregular formations, much of it covertly, which is why the period is often referred to as the “Secret War”. U.S.-supplied weapons circulate widely and are also captured, traded, and re-used.
- Air war and bombardment: Laos becomes one of the most heavily bombed countries in the world during this period, with long-term humanitarian and political consequences.
- 1975: The conflict ends with communist victory and the establishment of the Lao People’s Democratic Republic.
Why does this matter for the museum’s weapon?
This three-decade arc explains why a Lao museum can plausibly contain, side by side, weapons from the French colonial period and from the later U.S.-supplied Vietnam era, sometimes even combined in the same artefact. It also explains why tidy labels can struggle; the underlying history was not tidy either.
France’s Mixed Arsenal, and New Zealand’s Quiet Link
French forces in Indochina did not rely on a single, tidy supply chain. Their arsenals were a patchwork of wartime leftovers, U.S. aid, and equipment sourced from allied and partner nations.
Between 1952 and 1954, New Zealand provided surplus military aid to French forces in Indochina, contributing to this mixed equipment landscape. That programme is examined in detail here:
NZ Aid to French Indo-China 1952–54
https://rnzaoc.com/2021/10/05/nz-aid-to-french-indo-china-1952-54/
It is also worth clarifying a common point of confusion. During the Second World War, New Zealand manufactured approximately 10,000 Sten submachine guns as part of its domestic wartime production programme. These weapons were produced to meet New Zealand’s own defence requirements in the Pacific and to supplement British and American-pattern small arms already in service.
However, New Zealand-manufactured Stens were not part of the consignments sent to French Indochina in 1952–1954. The documented New Zealand aid provided to France consisted primarily of American-origin weapons, ammunition, and equipment held in RNZAOC depots as post-war surplus. This distinction matters, as it avoids conflating New Zealand’s wartime manufacturing effort with its later Cold War-era military aid.
The M60 Barrel, a Later Chapter
The weapon’s front end clearly points to a later period. The United States adopted the M60 machine gun in the late 1950s and became iconic during the Vietnam War. By the 1960s and early 1970s, during the so-called “Secret War” in Laos, M60S were standard issue for U.S. forces and were supplied to American allies, including the Royal Lao Army and CIA-backed irregular units. Unsurprisingly, some were captured, damaged, or cannibalised.
The heavy barrel and bipod on the museum weapon are entirely consistent with an M60 assembly. Attaching such a barrel to a Sten receiver is an odd marriage, but not an implausible one in a region where battlefield salvage and improvisation were commonplace.
Why Build Something Like This?
Assuming this is genuinely a Sten receiver combined with M60 components, several plausible explanations present themselves:
- a damaged or worn Sten kept in service by fitting whatever usable barrel was available,
- an attempt to create a steadier, more controllable automatic weapon using a bipod and a heavier barrel,
- or simple workshop pragmatism, keeping something functional when the correct parts were unavailable.
Throughout the Indochina and Laotian conflicts, weapons were routinely modified, re-barrelled, or adapted to suit ammunition availability and operational needs. Orthodoxy mattered far less than whether a weapon worked.
Forgotten Weapons and the Chinese Sten Connection
There is, however, an important additional layer of context that significantly broadens the range of plausible explanations for the Sten portion of this weapon, and it comes from Forgotten Weapons.
Ian McCollum is a firearms historian, researcher, and presenter best known as the founder of the Forgotten Weapons project. Through a combination of detailed technical examination, archival research, and hands-on access to museum and private collections worldwide, McCollum has become one of the most widely respected independent authorities on historic small arms. His work focuses particularly on obscure, experimental, improvised, and transitional weapons that fall outside standard service patterns, precisely the sort of firearm represented by the Lao museum hybrid.
Because his research frequently traces weapons across borders, conflicts, and post-war modification programmes, his analysis of Asian Sten variants and conversions provides a beneficial framework for understanding how a Sten-pattern weapon could evolve into something as unconventional as the example on display in Laos.
In May 2020, Ian McCollum published “Chinese 7.62 mm Sten Gun”, documenting a little-known but highly relevant chapter in Sten history. During the Second World War, Canada supplied approximately 73,000 Sten Mk II submachine guns, manufactured at the Long Branch arsenal, to Chinese Nationalist forces to support their fight against Japan. These were originally standard 9×19 mm Stens.
After the Chinese Civil War, many of these weapons were converted to 7.62×25 mm Tokarev, particularly following the Communist victory. The conversion pattern is recognisable and included:
- fitting a new 7.62 mm barrel, often longer than the original Sten barrel,
- replacing the magazine system, commonly using PPS-43 magazines,
- either installing a magazine adapter into the original Sten magazine well, or cutting it off entirely and welding on a new magazine housing.
In addition to conversions, Sten-pattern submachine guns were also manufactured domestically in China, in both 9 mm and 7.62 mm Tokarev. The popularity of the Tokarev cartridge was reinforced by China’s long familiarity with the dimensionally similar 7.63 mm Mauser cartridge used in C96 pistols.
This Forgotten Weapons context is critical. It demonstrates a well-documented pathway by which long-barrelled Sten-pattern weapons already existed in Asia, independent of British or Commonwealth post-war supply. Such weapons could plausibly have entered Southeast Asia through Chinese supply routes, battlefield capture, or secondary transfer during the Indochina and Laotian conflicts.
Seen in this light, the Lao museum example may represent not just a Sten modified with later U.S. components, but a multi-stage hybrid: a Sten-pattern weapon already altered in Asia, later further modified using whatever parts were locally available, including M60 barrels, bipods, and sights.
The Only Other Trail, a Reddit Thread
What is striking is how little public discussion of this weapon exists. The only substantial online discussion I have been able to find is a five-year-old Reddit thread on r/ForgottenWeapons, titled:
“Sten 60 or Frankensten – a weird hybrid I found and photographed a few years ago in a museum in Laos!”
The comments mirror many of the same observations: identification of a Sten base, recognition of M60 components, speculation about calibre conversion, and debate over how and where such a weapon might have been assembled. While informal, the discussion reinforces the sense that this is a genuine, unusual artefact rather than a modern fabrication.
Likely Origin Scenarios
Based on the physical features of the weapon, documented supply routes, and comparable examples, several plausible origin pathways emerge:
- British Sten → Indochina → Later U.S.-era modification
A genuine WWII-era Sten enters the region via wartime or immediate post-war channels, is later captured or retained in Laos, and subsequently modified during the Vietnam-era conflict using salvaged U.S. M60 components. - Chinese Sten (7.62 mm Tokarev) → Regional circulation → Further modification
A Sten-pattern weapon supplied to China during WWII, or domestically produced there, is converted to 7.62×25 mm Tokarev with a longer barrel, then later further adapted in Laos using available M60 parts, creating a multi-stage hybrid. - Multiple rebuilds across decades
Rather than a single conversion, the weapon may reflect successive modifications over time, incorporating parts from different conflicts as availability dictated, resulting in the unusual configuration seen today.
In all cases, the weapon’s current form likely postdates the 1945–1954 period cited on the museum label, which appears to describe the historical context of the conflict rather than the exact moment of modification.
What This Weapon Really Represents
Taken together, these factors suggest that the museum label should be interpreted as a contextual narrative marker, rather than as a precise technical identification. The object itself appears to embody multiple phases of Laos’s twentieth-century conflicts, rather than cleanly fitting into a single war, date range, or designation.
There is, however, one further possibility that warrants consideration. The object on display may not represent a weapon that ever existed in this exact configuration as a functional field arm, but instead a composite or interpretive assemblage created for exhibition purposes.
In museum practice, particularly where collections are incomplete or provenance is fragmentary, it is not unusual for displays to include reconstructed or composite objects. Such assemblages are often used to illustrate broader historical themes, to convey the character of conflict-era matériel, or to fill interpretive gaps where complete artefacts are unavailable. In these circumstances, curatorial intent is typically illustrative rather than technical, prioritising narrative clarity and visual communication over strict artefact taxonomy.
If this interpretation applies here, the Frankensten may function as a representational object, combining recognisable elements from different phases of Laos’s twentieth-century conflicts to communicate themes of improvisation, scarcity, and the long overlap of colonial and Cold War warfare. This would help explain both the weapon’s unusual configuration and the imprecision of its labelling, as well as the absence of verifiable manufacturing or proof marks.
Significantly, this possibility does not diminish the historical value of the exhibit. Even as a constructed or partially reconstructed object, it reflects a genuine aspect of the Lao wartime experience, namely the continual recycling, adaptation, and repurposing of weapons across decades of conflict. What it does suggest is that the object should be approached primarily as a representational artefact, rather than as definitive evidence of a formally issued weapon or a fixed moment in time.
Rather than viewing the Frankensten simply as a mislabelled object, it is more productive to understand it as a material record of overlapping conflicts. Laos experienced war not as a series of neatly separated episodes, but as a prolonged period in which colonial conflict bled into Cold War confrontation.
This Frankensten embodies that continuity. A Second World War-era design meets later Asian conversions and Vietnam-era U.S. components, shaped by capture, reuse, and local ingenuity. The museum label tells one story, but the metal tells a far more complicated one.
Closing Thought
The “M19 Gun” label may not stand up to close technical scrutiny, but the Frankensten itself is no less valuable for that. In fact, its ambiguity is precisely what makes it interesting. It forces us to think about how weapons move across borders, how they outlive the wars that produced them, and how museums sometimes prioritise narrative clarity over mechanical precision.
If history is messy, this weapon is a perfect reflection of that mess, and of Laos’s long, entangled experience of twentieth-century war.













