I recently bought a daniel defense government barrel for my G&G as an upgrade because I didn't want the non-removable iron sight anymore. Upton trying to install it, I relized that the barrel needs a special barrel nut that has a wider opening. Now I have a barrel sitting around that I can't attach to my gun. Is there any way anybody can help? Modifications or suggestions, anyone selling a daniel defense barrel nut, anything would help. Thanks guys.