6.8 SPC (Special Purpose Cartridge) is a rifle cartridge developed to offer greater accuracy and stopping power than standard 5.56 NATO rounds, especially in AR-15 platforms. While not a manufacturer, many firearms companies produce 6.8 SPC-specific parts, including barrels, upper receivers, bolt carrier groups, magazines, and complete rifles. These components are compatible with AR-15 lower receivers and standard AR-15 parts, making 6.8 SPC a popular choice for shooters seeking improved terminal ballistics for hunting, self-defense, and tactical applications.
