Yankee Hill Machine Billet Upper Receiver, 5.56x45mm NATO, Black Anodized - 110BILLET

This is a stripped billet upper receiver for AR-15 platforms chambered in 5.56x45mm NATO, machined from 7075-T6 aluminum with black anodized finish. The billet design provides a distinctive aesthetic while maintaining full compatibility with standard AR-15 components. No sights or additional hardware are included; it requires a bolt carrier group and charging handle for complete assembly.