The Colt CR6940 utilizes a patented one-piece monolithic upper with a continuous mil-spec rail for unmatched repeatability with optics and laser systems. The lower rail is removable provides modularity and allows for mounting accessories. A free floating barrel provides enhanced accuracy in mind. Additional features include a straight gas tube, gas block with folding sight, Mil-Spec lower , Mil-Spec trigger/hammer, MBUS rear sight and Carbine telescoping stock. This item comes with a case and a magazine. Overall condition is great with minor wear from use.