The Ka-Bar knife is a versatile and durable fixed-blade knife originally designed for military use. It gained popularity during World War II, where it was used by the United States Marine Corps. The knife features a 7-inch blade made of high-carbon steel, known for its strength and edge retention, making it suitable for various tasks. In addition to its military applications, the Ka-Bar knife is favored by outdoor enthusiasts and survivalists. Its ergonomic handle provides a secure grip, and the knife is often used for camping, hunting, and self-defense. The design has remained largely unchanged, reflecting its effectiveness and reliability over the years.