In South Korea, the "K6 Heavy Machine Gun" is commonly referred to, and it can be considered a Korean version of the M2HB Browning heavy machine gun. Therefore, the terms ".50 caliber heavy machine gun," "12.7mm heavy machine gun," and "K6 heavy machine gun" are used interchangeably.

The K6 heavy machine gun is a 12.7mm (.50 caliber) weapon produced by S&T Motiv (formerly Daewoo Precision), and it is an upgraded model based on the American M2HB Browning heavy machine gun to meet the specific requirements of the South Korean military.

This machine gun features powerful firepower and long range, making it ideal for use in infantry support, vehicle and aircraft mounting, air defense, and anti-material operations. It is capable of both semi-automatic and fully automatic fire and can be mounted on tripods, vehicles, ships, and helicopters.

✅ Key Features:
Caliber: 12.7×99mm NATO (.50 BMG)
Operation Mode: Short recoil (blowback) mechanism
Rate of Fire: Approximately 450–600 rounds per minute
Effective Range: Around 1,800 meters
Maximum Range: Approximately 6,800 meters
Operational Platforms: Can be mounted on tripods, vehicles, armored vehicles, and helicopters

✅Operational Usage:
The K6 heavy machine gun is widely used by the Republic of Korea Army, Navy, Air Force, and Marine Corps, and it is deployed on various platforms, including K808 armored vehicles, K1/K2 tanks, light tactical vehicles, ships, and UH-60 helicopters.