AR-15 Chambered with .223 Wilde. This is the best chamber for changing between 5.56 and .223. Fit with a 15” hand guard and a 10.5” barrel that has been extended with a long muzzle device. Gas system is carbine length. Upgraded nickel boron bolt carrier group which reduces the need for as much lubricant. Rifle fires perfectly, has had no misfires or jams, and is very accurate. Comes with a See All sight. This sight is simple and easy to use. Also comes with a 30-round magazine.