Bloodline sauce packs feature our hard-use barrels (from the namesake category) and the accessories needed to provide the consumer with a complete ignition system for their Duty/ Defense builds. Each Bloodline “Sauce Pack” features a Bloodline barrel, Bloodline BCG (5.56/.300 BLK), Bloodline Gas Block (Non-Adjustable), and a Bloodline Gas Tube (Pistol, Carbine, Mid-Length, or Rifle). The parts are all designed to work perfectly when paired together and are designed to maximize the performance of each component, collectively!