A 6.5 Grendel bolt carrier group keeps your AR-15 running smoothly with one of the most accurate long-range cartridges available for the platform. The 6.5 Grendel delivers outstanding ballistics at distance while staying compatible with a standard AR-15 lower. At Daytona Tactical, we stock 6.5 Grendel bolt carrier groups from trusted brands at competitive prices with fast USA shipping.