Bidspirit auction | 6-Inch .300 Blackout AR-15 Barrel

6-Inch .300 Blackout AR-15 Barrel Attributed to Ballistic Advantage - This 6-inch AR-15 barrel is attributed to the Modern Series by Ballistic Advantage and is chambered for .300 Blackout. It is manufactured from 4150 Chrome Moly Vanadium steel with a matte black finish. The assembly features a pre-installed barrel extension with an indexing pin and M4 feed ramps. The barrel is configured for a pistol-length gas system, featuring a pre-drilled gas port and a dimpled seat on the underside for gas block set screw alignment. Markings on the exterior profile read 300 BLK 1/7, indicating the caliber and twist rate. The muzzle features 5/8x24 threads. Length: 6 inches. Dimensions: 6''