A bayonet is a blade that can be attached to the muzzle of a firearm, typically a rifle, allowing it to be used as a spear in close combat. This weapon has been used since the 17th century and was common in many military conflicts, providing soldiers with a versatile tool for both shooting and hand-to-hand fighting. Bayonets come in various designs, often resembling knives or swords, and are usually made of steel for durability. They can be fixed to the firearm or designed to be quickly attached and detached. The use of bayonets has declined with the advent of modern warfare and firearms technology.