This 6.5 Creedmoor chambered (DPMS style) 20 inch barrel is machined from 416R Stainless Steel with a bead blasted finish. Our Premium Series 6.5 Creedmoor Barrels are proof fired and MPI tested, ensuring the best in quality and accuracy. 6.5 Creedmoor is the perfect option if you're looking to maximize the accuracy of your .308 platform. Apart from a simple barrel swap, all parts, including the bolt and mag, remain the same as a normal .308 build. The inherently accurate 6.5mm projectile, the increasing amount of off-the-shelf match grade factory 6.5 Creedmoor ammunition, and the extremely soft recoil pulse all combine to create one of the best black rifle options available. Ballistic Advantage 20 inch 6.5 Creedmoor AR 308 Heavy Profile Stainless Premium Series Barrel, 416R Stainless Steel, 1/8 Twist, MPI and HP Tested with Rifle length Gas System, Bead Blasted with Nickel Boron M4 Extension. 100% USA Made. Sub MOA Guarantee. Weight 66.1 oz Length 20 Profile Heavy Twist 1:8 Finish Bead Blasted Material 416R Stainless Steel Thread Pitch 5/8-24 Caliber 6.5 Creedmoor Feed Ramp M4 Flutes None Gas System Rifle length Rifling Conventional Gas Block System 0.875