The Wilson Combat Billet Upper is a premium stripped receiver precision-machined in the USA for the AR-15 platform. CNC-machined from 7075-T6 aerospace aluminum billet stock, it features a durable black anodized finish and a smooth side profile without a forward assist to maximize accuracy and rigidity. This 9.20 oz upper is engineered with a precise bolt raceway for smoother chambering and reinforced walls to reduce firing flex. It includes integrated M4-style extended feed ramps and a standard Picatinny top rail, offering enhanced tolerances over standard USGI receivers for high-performance AR Style builds.