(CR6920) This is a new Colt M4 Carbine AR-15 semi-automatic rifle chambered in 5.56/223 cal. This tactical rifle features an A2 front sight, Magpul Rear sight, A2 Flash hider, Black Polymer furniture, aluminum receiver, 16.1" chrome-lined barrel, and a weight of 6.9 lbs. Colt's CR6920 series carbines share many features with their combat-proven brother, the Colt M4. It utilizes a chrome-lined barrel, an adjustable-post front sight with rear Magpul Gen2 Back-Up Sight (MBUS), and a 30-round Magpul PMAG. This model has no carry handle.