Ergo Grips

Ergo Grips

  • Ergo Grips AR-15/M16 M4 Receiver Castle Nut, Black

    Ergo Grips

    Ergo Grips AR-15/M16 M4 Receiver Castle Nut, Black

    The Ergo Grips AR-15/M16 M4 Receiver Castle Nut is a precision-machined steel component designed to securely lock the receiver extension or buffer tube to your lower receiver. Built to mil-spec...

    $9.29