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June 26, 2019

Awesome Instruments Made From Firearms

A firearm is a portable gun, being a barreled weapon that launches a single or multiple projectiles often defined by the action of an explosive.

The first firearms in the world were invented during 13th century in China when the man portable fire lance (a bamboo or metal tube that could shoot ignited gunpowder) was combined with projectiles such as scrap metal, broken porcelain, or darts/arrows. The technology gradually spread through the rest of East Asia, South Asia, Middle East and then into Europe.

In older firearms, the propellant was typically black powder, but modern firearms use smokeless powder or other propellants. Most modern firearms (with the notable exception of smoothbore firearms) have rifled barrels to impart spin to the projectile for improved flight stability.

Modern firearms are typically described by their bore diameter (75mm) or calibre (.357) or gauge (12 ga.), the type of action employed (muzzle, breech, lever, bolt, revolver, semi-automatic, or automatic) together with the usual means of deportment (hand-held or mechanical mounting).

They may be further distinguished by reference to the type of barrel used (rifled) and the barrel length (19 inch), the design’s primary intended target (anti-aircraft), or the commonly accepted name for a particular variation (Gatling gun).

Firearms may sometimes be referred to as small arms when they are intended primarily for use by military forces if they can be carried by a single individual.

Firearms are aimed visually at their targets by hand using either iron sights or optical sights.

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