A 6.8 SPC bolt carrier group (BCG) is a critical component for AR-15 rifles chambered in 6.8 SPC. It includes the bolt, carrier, gas key, firing pin, cam pin, and retaining pin, all designed to handle the specific case head and pressures of the 6.8 SPC cartridge. The 6.8 SPC BCG works with AR-15 upper receivers, 6.8 SPC barrels, charging handles, and lower receivers, ensuring reliable cycling, chambering, extraction, and firing in 6.8 SPC AR-platform builds.
