A long gun is called an arquebus. 

An arquebus is a long gun. 

Later, people added a trigger to the gun. This was a new way to fire. It used a piece of burning rope. This rope would touch the powder to make a flash. 
Loading the gun was a slow job. It could take one whole minute. Soldiers had to follow many steps to get ready. 
Groups of soldiers learned to fire all at once. This was called volley fire. It helped them fire more often. 
These guns changed how armies worked in many lands. They were very important tools for soldiers.
An arquebus is a type of long gun. 

Around the late 1400s, the arquebus changed. It gained a shoulder stock and a trigger. The trigger worked with a matchlock mechanism. A matchlock is a way to fire the gun using a piece of burning rope called a match. 
Loading the gun was a very slow process. It could take up to one minute. To fix this, groups used volley fire. This is a way where rows of soldiers take turns firing. 
An arquebus was a type of long gun used by soldiers many centuries ago. 

The most important part was the matchlock mechanism. This was a way to fire the gun using a smoldering rope called a match. 

These weapons appeared in different places during the 1400s. In the Ottoman Empire, the Janissary corps used them as early as 1465. In Europe, the matchlock likely appeared a little before 1475. By the time of King Matthias Corvinus of Hungary, many soldiers used them. In Russia, a small version called a pishchal appeared in 1478. These guns changed how armies fought across the whole world.
Using an arquebus was a very slow and difficult task. 

Eventually, larger guns called muskets were developed around 1521. These were made to pierce heavy metal armor. 
The arquebus was a significant form of long gun used by infantrymen from the 15th to the 17th centuries. 

The most important technological leap for the arquebus was the matchlock mechanism. 

While the matchlock allowed soldiers to aim with both hands, it was quite difficult to operate. Soldiers had to be very careful not to accidentally ignite the gunpowder while loading. To prevent this, they often had to detach the smoldering match during the loading process. Sometimes the match would go out, so soldiers kept both ends lit to ensure they had a flame. The loading process was incredibly complex and required many steps. In 1607, a Dutch manual by Jacob de Gheyn listed 28 separate steps just to load and fire the gun. In China, General Qi Jiguang even composed an 11-step song to help soldiers practice the rhythm of loading. 
Because reloading was slow, taking anywhere from 20 seconds to a full minute, militaries developed volley fire. 
Different versions of the weapon appeared in various regions and time periods. Around 1521, a heavier version called a musket was developed to better penetrate plate armor. 
The history of the arquebus is spread across many empires. In the Ottoman Empire, arquebusiers were noted in the 1440s, and 400 served in Sultan Murad II's campaign. In Europe, the weapon saw heavy use during the reign of King Matthias Corvinus of Hungary. In his Black Army, one in four soldiers was an arquebusier. In Russia, a smaller version called a pishchal appeared in 1478. By 1545, two thousand pishchal'niki were levied, including one thousand who fought on horseback. This shows how the weapon was adapted to different military needs and social structures.
The development of the arquebus represents a major shift in military technology. It acted as the successor to the hand cannon and the forerunner to the flintlock musket. As armor declined in use during the mid-16th century, the importance of the heavy musket also changed. However, the transition to trigger-operated, shoulder-fired weapons was permanent. The arquebus moved warfare away from simple hand cannons toward the highly organized, systematic firing methods used by early modern armies. This evolution paved the way for the more advanced flintlock and percussion firearms that followed.
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