The Colt AR-15 A4 5.56 is a semi-automatic rifle that pays homage to the iconic AR-15 platform. Chambered in the versatile 5.56x45mm NATO 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. The 30-round magazine capacity provides ample firepower for personal defense or recreational shooting. These are classified as Blem pistols by Colt QC inspectors due to some very minor cosmetic flaw that in most cases cannot even be seen or identified by the purchaser. It can be a minor as a slight shading difference in the finish which if not compared side by side with other guns from the same lot, cannot be detected. All are mechanically 100%. Blems are not covered by Colt\'s one-year manufacturer warranty. This is a great way to purchase a highly desirable firearm at below market value without any quality compromise.