Tstallones

I damaged my rail on my m4 with the wrong type of scope mounts. I have called brownells, impact and gun parts corp. None of them have a parts breakdown for the M4 and when I called benelli they refer you back to brownells. Does anyone have a parts breakdown for the M4? In my manual the refernence number is 260J for the rail and 261J for the screws. Can anyone help? Tod