AR-15 Accessory: Y Made In The USA: Made In The USA Other FEATURES:: ARAK-21 Upper Receiver Gas Piston ACTUATED, Billet Aluminum Upper Receiver M4 Style Quad Rail, AMBI Safety & Charging Handle Other FEATURES2:: Adjustable Gas System, Steel Rail System For Bolt Carrier System, MUZZLOK Muzzle Device, Weight 5.1 Lbs. Caliber: .223/5.56 Nato Barrel Length In INCHES: 12.5 Rate Of Twist: 1:8" Barrel Material: Steel Barrel Finish: Nitride
