Brand: Great Lakes FirearmsModel: AR-15Caliber: 223 WyldeOperating System: Direct ImpingementCapacity: 30Action: Semi-AutoOAL: 23.50"Hand: Right HandSights: NoneBarrel Finish: StainlessBarrel Material: 416R Stainless SteelTwist: 1:8"Receiver Description: Picatinny RailGrips: Mil-SpecHandguards: 7.13" M-LOKReceiver Material: 7075-T6 AluminumThread Pattern: 1 / 2"x28Stock Description: Buffer TubeBarrel Description: ThreadedBarrel Length: 7.50"Max Capacity: 30Receiver Finish: OD Green CerakoteWeight: 6.80 lbs