AT3(TM) Forged AR-15 Upper Receiver and Pro Quad Rail Combo - Tungsten, 12.5 inch (Color: Tungsten, Length: 12.5 inch)

AT3 Forged Upper with Lightweight Quad Rail Combo If you're looking to update your rifle with a custom look and a rock solid quad rail, save big by bundling AT3's forged upper receiver with the Pro Quad Rail! This setup is perfect for building out a custom upper, and dropping it onto a milspec lower [...]