Ruger AR 556 300 Blackout rifle is available in stock for sale at the Ammo gun shop at the best price. Moreover, as the pistol name suggests, it uses the highly familiar and end-user-friendly AR receiver layout. Also, this rifle is complete with a forward assist, brass deflector, and dust cover. Additionally, just like the original 5.56 NATO pistol, the .300 BLK version of the AR-556 300 balackout uses a 10.5-inch cold hammer-forged barrel. Also, the pistol-length gas system works well with both supersonic rounds typically. Which are used for hunting, as well as subsonic rounds. Also, its 5/8″-24 threading on the barrel allows for the gun to be optionally suppressed, or outfitted with a wide range of muzzle devices including flash hiders and compensators.