ZCI Aluminum M4 Outer Barrel for M4 / M16 AEG Rifles

Features Aluminum alloy construction; anodized matte black One piece design Ultra light weight Manufacturer: ZCI Specifications: Material: Aluminum Alloy Length: 10.5" Thread Direction: 14mm Negative Compatibility: For Tokyo Marui, Matrix and Other Compatible M4 / M16 Series Airsoft AEG Rifles