Sharps Bros. AR-15 Billet Stripped Upper Receiver w/Forward Assist 7075-T6 Aluminum Black Anodized SBUR04. lower receivers perfectly and has a mil-spec front end that is compatible with any AR15 barrel nut and any AR15 handguard out there including...
Sharps Bros. AR-15 Billet Stripped Upper Receiver w/Forward Assist 7075-T6 Aluminum Black Anodized SBUR04. lower receivers perfectly and has a mil-spec front end that is compatible with any AR15 barrel nut and any AR15 handguard out there including...