The K2 Rifle is a South Korean military firearm designed for infantry use. It was developed in the late 1990s and officially adopted by the Republic of Korea Armed Forces in 2000. The rifle is chambered for the 5.56×45mm NATO cartridge and features a gas-operated, rotating bolt mechanism, making it reliable in various conditions. The K2 Rifle is known for its lightweight design and modularity, allowing for the attachment of various accessories such as scopes and grips. It has a maximum effective range of around 500 meters and is used by several military forces, including those of South Korea and Philippines.