A pistol sword is a sword with a pistol or revolver attached, usually alongside the blade. It differs from a rifle with a bayonet in that the weapon is designed primarily for use as a sword, and the firearm component is typically considered a secondary weapon designed to be an addition to the blade, rather than the sword being a secondary addition to the pistol. In addition, the two components of these weapons typically cannot be separated, unlike most bayonet-fixed rifles.
Historically, some flintlock pistols of the 17th and 18th centuries were constructed as gun-swords, with the barrel of the pistol attached to the side of the blade of a shortsword or dagger. A shell guard protected the firing mechanism when it was used as a sword. These were used by French and German hunters to kill wounded wild boar. Examples of these weapons can be found in the armoury of Wawel Castle (Kraków, Poland). Similar weapons were made in India, including the Katar (कटार), a thrusting dagger with two built-in pistols that could be fired by squeezing the bars of the handgrip together.
In 1838, the United States Navy developed the .54 caliber, single-shot smoothbore Elgin pistol, which was equipped with an 11.5-inch Bowie knife blade and was intended for use by boarding parties; it was the first percussion cap gun in naval service, but only 150 were made. The Navy specifically intended them for the Wilkes-South Seas expedition. Reportedly, in 1840 a naval landing party used the pistol to good effect when Fijian warriors attacked the sailors on the island of Malolo. A few Elgin pistols were still in use during the US Civil War, but proved unpopular. The Navy quickly replaced them with the M1860 Cutlass, which remained in service until the 1940s. Some found their way into civilian hands and some ended up in the Old West.
Pinfire cartridge gun-swords were produced in Belgium during the mid-19th century, although in limited quantity. These custom-made weapons were sometimes used by European officers and featured a loading gate behind the basket hilt. In 1866 T Rauh of Solingen filed a United States patent on the design of a 9mm caliber pistol sword with a 32in blade.
During World War I, the British manufactured a limited number of Webley revolvers with folding blades, similar in design to the Pritchard pistol bayonet. These were used by officers in the trenches for close quarters fighting as the confined space made it difficult to use a sword. However, few were produced due to the expense and scarcity of raw materials.
A rare variant of the World War II Japanese Nambu automatic pistol was a pistol sword. It is possible that this non-regulation weapon was privately purchased by an officer as only one example is known to exist.
Another notable example of a pistol sword was the Swedish 1865 Cutlass Pistol; 500 were ordered by the government and issued to prison guards. It was a breech-loading 2 shot weapon with a 14in by 2in blade weighing 2.5 lb. A few ended up on the other side of the Atlantic and one became part of Buffalo Bill's gun collection.
In the late Victorian era, some French swordsticks had built-in pinfire pepperbox revolvers to increase their lethality; these were carried by civilians for self-defence. However this idea was far from new; combination swordsticks and wheel lock pistols have been in use since the 16th century.
Pistol swords were not widely used and became uncommon relatively quickly, due to their expense and because instead of getting two weapons in one, one got a heavy pistol and a heavy, off-balance sword, as shown by the poor performance of the Elgin pistol.
Modern versions occasionally appear on the market, however, as novelties or collectors' items, including the Sierra Madre knife pistol.
- Edged weapons with built-in pistols were common in Eastern Europe. The flintlock axe pistol was a trademark Polish cavalry weapon from the 16th until the 18th century. Similar guns were made in Hungary and a multi-barreled version was invented in Germany. Axe pistols were also issued to the Swedish navy in the early 18th century.
- Some linstocks of the Renaissance and late medieval period had a matchlock pistol concealed in the blade.
- Henry VIII's bodyguards were equipped with iron round shields fitted with a pistol. The English also combined pistols with maces. A notable example is Henry VIII's Walking Staff, a 3 barreled pistol and morning star. The king would carry it while walking through the city at night to check up on the constables. Henry's mace pistol is now on display in the Tower of London's Tudor Room.
- In the late 19th century Paris street gangs carried Apache pistols which were a combination of knife, revolver and knuckleduster.
- Knife pistols with folding blades were popular in England during the mid Victorian era. These were made by Unwin and Rodgers, used black powder and were available in various small calibers. Like the modern Swiss Army knife they contained a variety of tools, from blades to corkscrews, and were often used by sailors. A modern version that fires .22 caliber rimfire cartridges is still in production.
- Belgian gunsmiths made revolvers with Bowie knife blades, some of which were used by French officers during the Crimean War and Franco-Prussian War.
- In modern times KA-BAR and LASERLYTE have teamed up to produce a Pistol Bayonet for today's tactical market.
- French Tactical Security Instructor, Firearms and Martial Arts expert Jeff Thenier designed a pistol shaped tactical folding knife called the P001 by STI KNIVES designed to replace the handgun when it is not available. The P001 uses pistol bayonet techniques for a unique form of knife combat.
In popular culture
- Knife or sword pistols sometimes appear in historical films, like Brotherhood of the Wolf, Deathwatch, or Gangs of New York, where it is used by Leonardo DiCaprio's character.
- Additionally, pistol swords may feature in anime films and video games, most notably in Final Fantasy as the "gunblade" of Squall Leonhart, and in the hands of Cervantes de Leon from the Soul series.
- In the PC XBox 360 and Playstation 3 hack-and-slash game X-Blades, the main character, Ayumi, uses a pair of so-called flintlock gun blades.
- Also in the PC XBox 360, Playstation 3, XBox One, Playstation 4, and Wii U game Assassin's Creed IV: Black Flag main protagonist Edward Kenway can use a sword and Flintlock Pistol combination unlockable after completing all of the Assassination Contracts.
- In the American-made, Japanese anime-styled webseries RWBY, the weapons used by many of the characters are some form of bladed or melee weapon integrating some sort of firearm or projectile launcher. 
German hunting knife and wheel lock pistol made in 1546.
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