Colt CR6921 M4 Carbine 5.56 14.5\" Barrel Rifle Semi-Auto 30rd Magpul MBUS

1) The Colt M4 Carbine CR6921 is a semi-automatic rifle chambered in 5.56mm NATO and .223 Remington. It features a 14.5-inch chrome-lined M4 contour barrel and draws from the combat-proven M4 platform for reliable performance. Chrome-lined 14.5-inch M4 barrel with A2 flash suppressor Flat-top receiver and Magpul folding rear sight Gas-operated action with 1:7 RH twist rifling This lightweight carbine offers mobility and accuracy with a black anodized hardcoat finish on forged receivers and dual aluminum shielding in the handguard for heat protection.