Yankee Hill Machine A3 Flat Top AR-15 Upper Receiver

Yankee Hill Machine A3 Flat Top AR 15 Receiver AR 15 Upper Receivers are manufactured from 7075-T6 aluminum and are Type 3 hardcoat anodized with t-marks. Features: These uppers were designed, and are MACHINED 100% IN HOUSE Made from 7075-T6 aluminum (Forged) M4 Style feed ramps and "T" Markings Inside coated with dry film lube Accepts Standard upper receiver parts (dust covers, forward assists, etc.) Accepts Mil-Spec Lower receivers Fit and function with your standard lower receiver Hardcoat Anodized matte black to Military Specifications or better NOTE: Does not include forward assist or dust cover assembly.