What year was the musket invented in China?

1132, during the Southern Song Dynasty.

In 1132 A.D., Chen Gui, a Chinese militarist of the Southern Song Dynasty, invented a musket, the earliest tubular firearm in the world's military history, which can be called the progenitor of the modern tubular firearm.

By the Southern Song Dynasty Kaiqingyuan year (1259) Shouchunfu people created a kind of sudden fire gun, the gun with a giant bamboo as a barrel, firing subarea (filled with black powder, porcelain, broken iron, stones, etc.). When fired, the mouth of the chamber spray flames, the areole flying out of the scattered kill the enemy, although can be counted as a shotgun, but with the modern shotgun is not related.

Expanded Information:

The oldest ancestor of the gun is the fire door gun, as the earliest metal tube-shaped musket, the early small cannons and so on belong to the fire door gun, the fire door gun launching generally need two people, the hit rate is low, the operation of the trouble, the launching of the low efficiency.

Changes in rifles: fire-gate rifle, fire-rope gun, revolving-wheel flintlock rifle, flintlock rifle, percussion rifle, revolving-barrel rifle-ball gun, bolt-type rifle, machine gun, semiautomatic rifle, sub-machine gun, automatic rifle (assault rifle).

Reference Baidu Encyclopedia - Guns