Fully chambered barrels let you convert a standard .223/5.56 AR to .300 Blackout - ideal for shooting subsonic rounds through a suppressor. “Recon Tactical” profile provides strength and rigidity while remaining lightweight. Polished M4 style feed ramps aid in reliable feeding. .300 AAC Blackout features six-groove, 1-8" twist, button rifling that works well for both subsonic and supersonic ammo. 11.3" barrel has a pistol length gas system. Barrel works with standard .223/5.56 bolt and magazines.
AR-15, Issue:11, Page:011
AR-15, Issue:11, Page:020
Big Book Catalog, Issue:69, Page:009
Big Book Catalog, Issue:69, Page:020