This 308 Winchester chambered (DPMS style) 20 inch fluted barrel is machined from 416R Stainless Steel with a bead blasted finish. Our Premium Series Barrels are HP and MPI tested, ensuring the best in quality and accuracy.Featuring functionally aggressive flutes and crisp, clean lines, BA Fluted barrels deliver the perfect balance of weight and rigidity. Utilizing six and eight flute designs we've achieved weight reduction up to and exceeding 16 ounces. Confidently lighten your kit without sacrificing an ounce of accuracy.SKUBABL308013PLLength20"MaterialHardened 416R Stainless SteelProfileHeavyFinishFluted Bead BlastedTwist Rate1/10"Gas System LengthRifleGas Block Journal1.03 Gas Block Seat for .750 Low Profile Gas Blocks OnlyMuzzle5/8x24 ThreadedWeight (oz)49 ozOther InfoHP and MPI Tested