Good evening......so I need some help or advice on installing a free float handguard on a bull barreled ar15 it seems I need a barrel nut with 1.050 internal diameter and most handguard barrel nuts are around 1 inch or so, I have done research and some folks machine out the id of the barrel nut 1.050 my question is are there any free float handguards available with a larger id or is it safe to machine out the barrel nut to fit......thanks in advance