The Colt Expanse™ M4 carbine puts a Colt quality AR-15 within easy reach of the modern sportsman looking to enhance his or her collection, or the first-time buyer looking for a starting point on which to build their dream modern sporting rifle. Either way, the Expanse™ M4 in 5.56 x 45 NATO (.223 Rem.), is a great way to add another Colt to the stable. The Colt Expanse™M4 Semi-Automatic Rifle can be upgraded with the addition of a forward assist and dust cover, while the CE2000 includes these features as standard. It features a six-position telescoping stock, a 16-inch barrel, and a top MILSTD-1913 “Picatinny” rail for optics. Includes one 5-round magazine.