The Colt AR-15 A4 is a semi-automatic Sporter rifle that pays homage to the iconic AR-15 platform. Chambered in the versatile 223 cartridge, this rifle is a modern interpretation of the classic design. The AR-15 A4 features a 20-inch government profile chrome-lined barrel with a 1:7 twist rate, providing excellent accuracy and reliability. The flat-top Picatinny rail upper receiver allows for the easy mounting of optics and accessories, while the detachable carry handle offers a traditional sighting solution. The A2 fixed buttstock and standard pistol grip provide a comfortable and familiar shooting experience. The gas-operated semi-automatic action ensures smooth and reliable operation. Removable Carry Handle / Receiver Length Picatinny Rail