The Ballistic Advantage Gas Tube is engineered for reliable AR-15 operation with carbine length specifications and durable Melonite finish in black.Ballistic Advantage Gas Tube Carbine LengthDesigned to fit AR-15 platform riflesMelonite finish provides corrosion resistance and durabilityBlack color finishPart number BAPA100010Essential component for AR-15 gas systems ensuring proper cycling and reliability in your rifle build or repair project.