Barrel: 16" 6mm ARC (MOA Guarantee and Lifetime Warranty)Barrel Material: 4150 Chrome Moly VanadiumBarrel Twist: 1:8 twist rateBarrel Thread pitch: 5/8 x 24Rail: 15" Free Float M-LOK RailBCG: Black Nitride Finish, 9310 Steel Magnetic Particle Inspected(MPI) Bolt, Tool Steel Extractor. (Lifetime Warranty)Charging Handle: Ambidextrous Charging Handle
Includes BCG and CHAll Parts Made in the USA!