The Patriot Ordnance Factory Minuteman Complete Upper is a high-performance 5.56x45mm NATO assembly for the AR-15 platform. It features a 10.50 4150 chrome moly vanadium barrel with a Black Nitride finish and a patented E dual-extraction chamber. Built on a Black Hardcoat Anodized aluminum receiver, it includes a 9 Renegade M-LOK free-float handguard with four integrated QD sling mounts. This tactical unit is equipped with a mid-length low-profile direct impingement gas system, a three-prong flash hider, and a Strike Eagle ambidextrous charging handle for rapid manipulation. Note: The patented E chamber features four small channels that allow gas to assist in unseating the spent casing, significantly increasing extraction reliability and extending the life of the extractor.