Offering a middle ground between bulky early machine guns and tough-to-handle machine pistols, the submachine gun came to dominate the WW2 battlefield and served as a prominent special forces, security, and law enforcement platform in the decades to follow.

A Harrington & Richardson Model 50 Reising SMG for sale.

If you're looking for an SMG for sale, Rock Island Auction Company's May 2-4 Premier Firearms Auction in Bedford, Texas offers dozens of historic examples among a record lineup of over 120 machine guns, including that rare Thompson pictured above the the French MAS-38 featured below.

An SMG for sale with rarity and a few big suprises, the French MAS-38 used a combination of a stock mounted buffer tube assembly and an off-axis bolt to reduce felt recoil, and could be stripped for cleaning without tools.

What Are Submachine Guns?

Submachine guns, often dubbed "subguns" or "SMGs," are usually defined as compact, select fire weapons that feed from a removable magazine and are chambered in pistol rounds like 9mm and 45 ACP. Designed for close-quarters combat and maneuverability, most submachine guns feature short barrels and a lightweight construction.

A candidate for the coolest 9mm SMG for sale, this example employs an M11-A1 frame fitted with a series of Lage upgraded components, most prominently a Max-31K upper, converting the weapon into a 9mm submachine gun compatible with KP31/PPSh41 drum magazines.

In recent decades, certain automatic short barrel carbines have blurred the line between subguns and light machine guns, like the AKS-74U, Mk18, and H&K53. While some nations place these models in the same legal category as submachine guns, the three examples mentioned above are chambered in intermediate caliber bullets.

The Uzi and the MAC-10, two of the most popular SMGs for sale at Rock Island Auction Company.

To add further confusion to defining submachine guns as a class, British Commonwealth countries sometimes use the term "machine carbines." Other nations, like Germany, describe the submachine gun class as "machine pistol" or "Maschinenpistole." This should not be confused with the machine pistol classification used by many American arms collectors, which references full auto handguns like the vintage M1932 Schnellfeuer and the Heckler & Koch VP70.

A short-barreled Heckler & Koch MP5K-N has a folding stock and Fleming Firearms auto sear.

The Submachine Gun Term

John Taliaferro Thompson, a retired army Colonel who co-founded the Auto-Ordnance Corporation in 1916, coined the term "submachine gun" to promote his new compact, fully automatic firearm. Colloquially dubbed the "Tommy gun," the weapon's official name during its first commercial production run was "The “Thompson Submachine Gun, Model of 1921."

The first appearances of the term "submachine gun" in print are found in 1919, when Thompson began presenting his invention to various law enforcement agencies like the NYPD. By late 1920, "submachine gun" had become a widely adopted designation in the media. The Oklahoma Greenfield Hustler described the Thompson as "really a machine gun in the form of a pistol."

A documented Rock Island County Sheriff's Department Colt Model 1921 Tommy gun, a classic .45 ACP SMG for sale.

Most media gave the new Thompson high praise for its potential in quelling riots, chasing down auto thieves, and its military applications. The New York Herald, for instance, appreciated the submachine gun for its ability to "spray like a hose" and enable "even the inexperienced marksman to shoot with the effect of a Bill Cody."

Other papers were more cynical, with a September 20, 1920 article in the New Brunswick Telegraph-Journal writing "We are not quite sure the submachine gun ought to be welcomed with much effusiveness. The automatic pistol [semi-automatic by today’s standards] was hailed as the finest thing in the world to enable the police to cope with armed burglars and other ruffians. It was - until the burglars themselves obtained automatics."

A cased Model 1921/1928 U.S. Navy Overstamp Tommy gun documented as shipped to the Sheriff's Office of Beaver County, Pennsylvania, one of the numerous SMGs for sale at RIAC.

Early Subguns

A few years before the Thompson began development, several early submachine guns had already hit the battlefield. The Italian "Villar Perosa," Chambered in 9mm Glisenti, became the world's first battlefield SMG, though it was originally intended as an aircraft weapon and a defensive platform. The gun's "Pistola Mitragliatrice Fiat Mod. 1915" designation translates to "pistol machinegun."

The German Bergmann Waffenfabrik Maschinenpistole 18, or MP18, hit the field in the final months of WW1. Employing a 32 round "Trommelmagazin" snail drum magazine developed for the 1914 Artillery Luger, the 9mm weapon performed well and became a major influence in the design of numerous next generation subguns.

One of the earliest subguns, a WW1 era German MP18.

The MP18 demonstrated the advantage of lightweight automatic weapons offered in up close engagements. Pieper Bayard of Belgium modified the design to feed from Hugo Schmeisser's straight double-stack magazine, resulting in the MP28. This model served as the basic blueprint for a host of next generation SMG models, including the STEN, Lanchester, Beretta 38, and PPSH-41.

The British "Lanchester", a famous WW2 submachine gun.

Subguns in WW2

The German MP38 and later MP40, which also employed a Schmeisser magazine, became some of the best-known submachine guns of WW2. Engineered for mass manufacturing, the Maschinenpistole 40 made extensive use of metal stampings and synthetic materials, achieving a rugged yet simple-to-produce design. The MP40 was commonly equipped to infantry leaders, paratroopers, and armored vehicle crews who would find carrying a full-sized rifle impractical.

Manufactured using a new-made receiver and some military surplus components, this desirable SMG for sale is a fine representative example of the MP40. Includes eight extra magazines, two loading tools, three reproduction manuals, and the book "The MP40 Submachine Gun" by Mike Ingram.

In the late 1920s, the U.S. Marine Corps deployed a limited number of Thompson submachine guns during the Nicaraguan Campaign. The U.S. Navy adopted the weapon in 1928, yet the U.S. Army would initially reject the Thompson, citing concerns that the SMG was "an undesirable weapon, effective only at short range."

A decade later, with war in Europe and Asia raging, U.S. Army Ordnance would finally to accept the Thompson into its arsenal in the form of a parkerized version designated the M1928A1. The United Kingdom, lacking any standard issue submachine guns, purchased over 100,000 Thompsons.

An Auto-Ordnance M1 Thompson submachine gun from WW2.

While the Thompson SMG was an effective weapon, its milled steel receiver was costly and time consuming to produce. Even the streamlined M1 version couldn't keep up with soaring demand, so both the Americans and the British turned to cheaper sheet steel subguns with tube receivers.

A .45 caliber SMG for sale, the M3 Grease gun was optimized for speed and ease of production.

Introduced in 1941, the Harrington & Richardson Model 50 Reising submachine gun saw action with the U.S. Marines in the Pacific as a substitute for the M1 Thompson. The Model 50 Reising would ultimately find the most use as a defensive weapon to protect war-essential industries and as patrol carbines for American police forces.

A Harrington & Richardson Model 50 Reising SMG for sale.

While America opted for the M3 "grease gun," Britain developed the STEN line of SMGs. The STEN saw over 4 million units manufactured across all variations, becoming the second most produced submachine gun of the war. Only the Russian PPSh-41 would surpass it, with over 5 million manufactured. By 1944, a quarter of Red Army infantry battalions carried subguns, and the British weren't far behind their Russian counterparts.

The PPSh-41 submachine gun sold for $51,750 in Rock Island Auction Company's April 2018 Premier Auction.

Though a competent SMG, the STEN was found lacking in several areas. The British Sterling started development late in the war and offered a more reliable bolt, better balance and accuracy, and a 34 round double column, double feed magazine that could be loaded more easily than its STEN predecessor. During WW2, the Sterling was only deployed in limited numbers for combat trials, but it became one of the most long-lived post war military submachine guns.

A Charles Erb STEN Mark II SMG for sale.

Subguns After WW2

The submachine gun revolution continued into the post-war years. While the British Sterling remained in service until 1988 and America's M3 grease gun saw continued use well into the Vietnam War, a host of new SMG models were developed around the globe.

Designed in the 1950s by Israeli inventor Uziel Gal, the Uzi became a standard for IDF paratroopers, armored crews, and covert operation commandos involved in indoor combat. The Uzi also proved a popular option with security forces and protective agencies such as the U.S. Secret Service.

A Group Industries HR 4332 SMG for sale, this model was part of the final generation of fully transferable American machine guns, manufactured shortly before the Firearm Owners Protection Act (House Resolution 4332) went into effect, making it among the last fully transferable machine guns manufactured in the United States.

Numerous submachine gun models were introduced over the next few decades. In 1959, the Beretta Model 12 was issued to various Italian law enforcement agencies and military police. The platform saw wider production in 1978 with the Beretta Model 12S, which redesigned the safety and selector to an integrated switch arrangement.

If you're looking for a 9mm SMG for sale, it doesn't get much better than a Beretta 12S with three extra magazines.

The Ingram M10, famously known as the MAC-10, was invented by American Gordon Ingram and produced in 1970 by Military Armament Corporation. Recognized for its distinct boxy, stamp-steel welded profile, the model's low price point failed to garner many military contracts, though it did become one of the more popular Hollywood action guns.

A MAC 10 SMG for sale with a Gemtech silencer, an extra barrel, a barrel extension, and twelve extra magazines.

The Swedish M45, also referred to as the Swedish-K SMG, was manufactured by the Carl Gustaf firm starting in 1945. Adopted by the Swedish Army, the model's reliability earned it a reputation as one of the finest submachine guns available, particularly with American Green Berets and Navy SEALS in Vietnam.

The Swedish government remained neutral in the conflict and refused to sell arms to warring nations as a matter of policy, cutting off additional supply in 1966. Smith & Wesson was approached by the U.S. Navy to produce a similar SMG, and the result was the S&W Model 76.

A Smith & Wesson Model 76 SMG for sale.

In addition to the American military, Smith & Wesson sold the Model 76 to police agencies and to the general public. MK Arms Company acquired the rights to the model and produced copies designated as the MK760 starting in 1983.

Other clones included the Burgess SW 76 from JMB Distribution, the SW 76 from John R. Stemple, and the M76A1 from Global Arms/Southern Tool, a principal partner of MK Arms before the two companies parted ways. These types of custom subguns that used a combination of surplus and newly manufactured parts were fairly common before the 1986 Firearms Owners Protection Act ended the production of new machine guns in America.

An MK Arms MK760 SMG for sale.

Submachine Guns Today

With the rise of short barrel assault rifles in the 1980s and 1990s, subguns became less prevalent in mainstream combat roles, though the platform continued to serve SWAT teams, security agencies, and counterterrorism forces. Offering exceptional maneuverability, ease of operation, and the ability to be easily suppressed, comparatively modern SMGs like the German H&K MP5 and UMP 40, the Czech CZ Scorpion EVO 3, and the Swiss B&T MP9 continue to serve around the world.

A rare smg for sale, the MP5A3 and its telescoping stock is easily recognizable from action films of the 1980s and 1990s. Compact short barrel rifles in catridges like 5.56 filled much of the niche previously occupied by submachine guns.

SMG for Sale

For the arms collector, submachine guns represent a fascinating look at the evolution of portable firepower, offer tremendous investment potential, and they're just plain fun to shoot. While semiautomatic only versions of many popular models are also available, the exhilaration of firing a full auto SMG is a thrill that can't be substituted.

A Voere/American International American 180M2 SMG for sale.

Whether you're looking to buy a Tommy gun, an Uzi, a Mac-10, or a Beretta 12S, RIAC's February auction offers a hard-hitting selection of SMGs for sale. With a finite number publicly available, these compact powerhouses consistently punch above their weight class on the auction block, so there's no better time to get in on the action.

A historic, documented, two-digit serial number 91, early production, West Virginia shipped, 'Battle of Blair Mountain' era Colt Thompson Model 1921 submachine gun for sale.

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Among the items produced by Marlin during World War 2 was this United Defense/Marlin M42 submachine gun. Intended to compete against the Thompson submachine gun. Chambered in 9mm, this M42 earned $37,375 in RIAC’s December 2021 Premier.