Hand cannon in the context of Cannons

The flash pan or priming pan is a small receptacle for priming powder, found next to the touch hole on muzzle-loading guns. Flash pans are found on gonnes, matchlocks, wheellocks, snaplocks, snaphances, and flintlocks.

A firearm is any type of gun that shoots projectiles using high explosive pressure generated from combustion (deflagration) of chemical propellant, most often black powder in antique firearms and smokeless powder in modern firearms. Small arms is a subset of light firearms that is designed to be readily carried and operated by an individual. The term "firearm" is however variably defined in both technically and legally in different countries (see legal definitions), and can be used colloquially (sometimes incorrectly) to refer to any type of guns.

The first firearms originated in 10th-century Song dynasty China (see gunpowder weapons in the Song dynasty), when bamboo tubes containing gunpowder and pellet projectiles were mounted on spears to make the portable fire lance, which was operable by a single person and was later used effectively as a shock weapon in the siege of De'an in 1132. In the 13th century, fire lance barrels were replaced with metal tubes and transformed into the metal-barreled hand cannon, and the technology gradually spread throughout Eurasia during the 14th century. Older firearms typically used black powder as a propellant, but modern firearms use smokeless powder or other explosive propellants. Most modern firearms (with the notable exception of smoothbore shotguns) have rifled barrels to impart a stabilizing spin to the bullet for improved external ballistics.

A cannon (plural either cannons or cannon) is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during the late 19th century. Cannons vary in gauge, effective range, mobility, rate of fire, angle of fire and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield. A cannon is a type of heavy artillery weapon. The word cannon is derived from several languages, in which the original definition can usually be translated as tube, cane, or reed.

The earliest known depiction of cannons may have appeared in Song dynasty China as early as the 12th century; however, solid archaeological and documentary evidence of cannons do not appear until the 13th century. In 1288, Yuan dynasty troops are recorded to have used hand cannons in combat, and the earliest extant cannon bearing a date of production comes from the same period. By the end of the 14th century, cannons were widespread throughout Eurasia.

The fire lance (simplified Chinese: 火枪; traditional Chinese: 火槍; pinyin: huǒqiāng; lit. 'fire spear') was a gunpowder weapon used by lighting it on fire, and is the ancestor of modern firearms. It first appeared in 10th–12th century China and was used to great effect during the Jin-Song Wars. It began as a small pyrotechnic device attached to a polearm weapon, used to gain a shock advantage at the start of a melee. As gunpowder improved, the explosive discharge was increased, and debris or pellets added, giving it some of the effects of a combination modern flamethrower and shotgun, but with a very short range (about 3 meters or 10 feet), and only one shot (although some were designed for two shots). By the late 13th century, fire lance barrels had transitioned to metal material to better withstand the explosive blast, and the lance-point was discarded in favor of relying solely on the gunpowder blast. These became the first hand cannons.

A matchlock or firelock is a historical type of firearm wherein the gunpowder is ignited by a burning piece of flammable cord or twine that is in contact with the gunpowder through a mechanism that the musketeer activates by pulling a lever or trigger with his finger. This firing mechanism was an improvement over the hand cannon, which lacked a trigger and required the musketeer or an assistant to apply a match directly to the gunpowder by hand. The matchlock mechanism allowed the musketeer to apply the match himself without losing his concentration.

An arquebus (/ˈɑːrk(w)əbəs/ AR-k(w)ə-bəs) is a form of long gun that appeared in Europe and the Ottoman Empire during the 15th century. An infantryman armed with an arquebus is called an arquebusier.

The term arquebus was applied to many different forms of firearms from the 15th to 17th centuries, but it originally referred to "a hand-gun with a hook-like projection or lug on its under surface, useful for steadying it against battlements or other objects when firing". These "hook guns" were in their earliest forms defensive weapons mounted on German city walls in the early 15th century. The addition of a shoulder stock, priming pan, and matchlock mechanism in the late 15th century turned the arquebus into a handheld firearm and also the first firearm equipped with a trigger.

In firearm designs, the term single-shot refers to guns that can hold only a single round of ammunition inside and thus must be reloaded manually after every shot. Compared to multi-shot repeating firearms ("repeaters"), single-shot designs have no moving parts other than the trigger, hammer/firing pin or frizzen, and therefore do not need a sizable receiver behind the barrel to accommodate a moving action, making them far less complex and more robust than revolvers or magazine/belt-fed firearms, but also with much slower rates of fire.

The history of firearms began with muzzleloading single-shot firearms such as the hand cannon and arquebus, then multi-barreled designs such as the derringer appeared, and eventually many centuries passed before breechloading repeating firearms became commonplace. Although largely disappeared from military usage due to insufficient firepower, single-shot firearms are still produced by many manufacturers in both muzzleloading and cartridge-firing varieties, from zip guns and ultra-concealable pocket pistols to the highest-quality hunting and match rifles.

Pistole is the French name given to a Spanish gold coin in use from 1537; it was a doubloon or double escudo, the gold unit. The name was also given to the Louis d'Or of Louis XIII of France, and to other European gold coins of about the value of the Spanish coin. One pistole was worth approximately ten livres or three écus, but higher figures are also seen. The derivation is uncertain; the term may come from the Czech píšťala ("whistle", a term for a hand cannon), or from the Italian town of Pistoia; either way, it was originally spelled pistolet and originated in military slang, and probably has the same root as pistol.

A small number of gold pistoles and double pistoles were minted in Ireland in 1646, during the Irish Confederate Wars and the reign of Charles I. James Butler, 1st Duke of Ormond authorised the issue in order to prevent troop defections, as there was a shortage of silver coins for paying soldiers. The coins had an approximate value of 13 shillings (26 s. for the double pistole); they are today worth over £65,000, as only eleven examples are known to survive. They are the only gold coins ever struck in Ireland, except for a small number of proof and ECU issues. The pistole weighed 103 grains (6.67 grams; 0.215 troy oz) while the double pistole was 206 grains (13.35 grams; 0.429 troy oz); the fineness was 19 karat. The coins (also called "pieces" or "pledges") did not bear any royal symbols, simply their weight (4 dwt 7 gr, or 8 dwt 14 gr) on both sides.

Huochong (simplified Chinese: 火铳; traditional Chinese: 火銃) is a Chinese name for firearms. In pre-modern China, the terms chong and pao were used interchangeably at times without clearly distinguishing between a gun and cannon. By the early Ming dynasty (1368–1644), it could refer to both cannons or hand cannons. The term chong has been applied to numerous types of firearm weapons in China, including the hand cannons (shou chong), bowl-mouth cannons (wankou chong), double edged gun (liangtou chong), and big 100-bullet gun (da chong baizi). The Koreans and Vietnamese (sung and phao) also used the same terms to describe early firearms.

The oldest confirmed huochong, also the earliest cannon with a date of production, is a bronze bowl-mouth gun (wankou chong) bearing an inscription dating it to 1298 (see Xanadu Gun).