Anderson Manufacturing UTILITY 16'' 7.62X39 COMPLETE UPPER

American Made. Performance Driven. The Anderson Utility Line brings you the high performance, American Made quality you expect at a respectable cost.Specifications and Features: CALIBER: 7.62 X 39 UPPER RECEIVER MATERIAL: Forged 7075 T6 Aluminum RECEIVER FINISH: Type 3 Hard Anodized, Black BOLT CARRIER FINISH: Nitride BOLT CARRIER MATERIAL: 8620 Steel BOLT FINISH: Nitride BOLT MATERIAL: 9310 Steel BARREL MATERIAL: 4150 Chrome Moly Vanadium BARREL LENGTH: 16 inches BARREL FINISH: Nitride TWIST RATE: 1:10 GAS SYSTEM LENGTH: Carbine Length GAS SYSTEM TYPE: Low Profile GAS BLOCK DIAMETER: .750 inch CHARGING HANDLE: Standard Charging Handle BOLT CARRIER GROUP: Standard M16 Profile