Ballistic Advantage 18" 350 Legend SPR Carbine Black Nitride Barrel

Ballistic Advantage 18" 350 Legend SPR Carbine Black Nitride BarrelThis 350 Legend chambered 18 inch Performance Series Barrel is machined from CrMoV steel with a QPQ Corrosion Resistant Finish. Our Performance Series barrels feature a Nickel Boron Coated Extra Wide Feed Ramp Extension.IMPORTANT: A standard 5.56 1/2x28 flash hider will not have enough clearance for a 350 round to pass.Use a 9mm 1/2x28 muzzle device or one designed for 350 Legend rounds.Before installing a muzzle device, ensure a 350 Legend round will drop freely through the muzzle device bore.Specifications:Length: 18"Material: Chrome Moly VanadiumProfile: SPRFinish: QPQ Corrosion ResistantTwist Rate: 1/16"Gas System Length: CarbineGas Block Journal: .750"Muzzle: 1/2x28 ThreadedWeight: 41ozOther Info: HP and MPI Tested