This is a Ruger AR556 chambered in 223 Remington and 5.56 NATO. It features a 16-inch barrel with a 1:8 twist rate, Magpul MBUS flip up rear iron sight, A post front iron sight, 30-round Magpul PMAG, and an adjustable stock. This rifle includes the factory box, owners' manual, Ruger decal, and lock. It is arguably the best bang for the buck when it comes to a entry level AR-15. This rifle is in "like new" condition as well. Excellent uses for this rifle would be various tactical uses, and home defense. Buy online today!