YHM has been a manufacturer of quality AR-15 Upper Receivers for a long time and is proud to off this A3 Upper Receiver. These uppers were designed, and are machined 100% in house. The top picatinny rail includes M4 Style feed ramps and "T" markings.

The receiver is made from forged 7075-T6 aluminum and accepts standard upper receiver parts (dust covers, forward assists, etc. which are sold separately). The inside has been coated with dry film lube and has a hardcoat anodized matte black to military specifications or better. This receiver will fit and function with your standard lower receiver.