Ballistic Advantage 18 5.56 BA Hanson Midlength AR-15 Barrel w/ Pinned Lo Pro Gas Block, Performance Series

This Ballistic Advantage Performance Series 16 5.56 Hanson Profile Barrel is machined using 4150 Chrome Moly Vanadium steel with a QPQ Nitride Finish. Performance Series barrels are enhanced with a FailZero Nickel Boron Coated M4 Feed Ramp Extension making it easy to clean and an ideal choice for pairing with a Nickel Boron bolt.Hanson Series Barrels feature Ballistic Advantage's proprietary BA Hanson profile and include a pinned low profile gas block. These Hanson barrels will not work with aftermarket piston kits.BrandBallistic AdvantageLength18Chamber5.56 NATO (shoots both 5.56 NATO and .223)ProfileGOVT / SOCOMFinishQPQ NitrideBarrel Steel4150V Chrome MolyTwist Rate1:7Gas System LengthMid-LengthGas Block Journal.750Feed Ramp ExtensionM4Muzzle1/2 X 28Weight22oz