This Guntec Complete Upper Receiver is machined from T6 6061 Billet Aluminum. This upper receiver can be used with multiple calibers on the AR-10 | LR 308 platform.
This Guntec Stripped Upper Receiver is machined from T6 6061 Billet Aluminum. This upper receiver can be used with multiple calibers on the AR-10 | LR 308 platform.