Hughes Ballistics 5.56 AR-15 USGI Profile Barrel 16in Government Mid-length Gas System 1-7 Twist 1/2x28 Thread Black Nitride

Hughes Ballistics 5.56 AR-15 USGI Profile Barrel 16in Government Mid-length Gas System 1-7 Twist 1/2x28 Thread Black Nitride. 56 chambered 16 inch USGI Profile mid-length Barrel is machined from 4150 Chrome Moly Vanadium steel with a Black Nitride QPQ Corrosion Resistant Finish and Black Nitride QPQ Corrosion Resistant coated M4 feed ramp extension. Specifications for Hughes Ballistics 5.56 AR-15 USGI Profile Barrel: Manufacturer: Hughes Ballistics Color: Black Finish: Nitride Fabric/Material: 4150 Chrome Moly Vanadium Steel Barrel Length: 16 in Barrel Profile: Government Gas System Length: Mid Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 1/2x28 Barrel Twist Rate: 1-7 Flutes: No Gun Make: AR Platform Gun Model: AR-15 Weight: 32 oz Package Contents: Hughes Ballistics 5.56 AR-15 USGI Profile Barrel Hughes Ballistics HB15USGI16556: 5.56 AR-15 USGI Profile Barrel 16in Government Mid-length Gas System 1-7 Twist 1/2x28 Thread Black Nitride