Aero Precision M4E1 Threaded Stripped Upper Receiver 223 Remington/5.56 NATO 7075-T6 Aluminum Black Anodized APAR700201C. 56 NATO. These AR15 Upper Receivers made by Aero Precision are machined from rugged lightweight 7075-T6 aluminum with your...
Aero Precision M4E1 Threaded Stripped Upper Receiver 223 Remington/5.56 NATO 7075-T6 Aluminum Black Anodized APAR700201C. 56 NATO. These AR15 Upper Receivers made by Aero Precision are machined from rugged lightweight 7075-T6 aluminum with your...