by McNair » Sat Jul 09, 2016 4:50 pm
The wide world of the internets.
Ebay, facebook groups selling gear,etc.
In my experience, most replicas are the same. I've had three or four and only one was different from the rest as the sides were wider allowing the use of large headsets easier. Otherwise, the same.
MARSOC also uses the 2001 and 2002, but the OpsCore Ballistic/Bump helmet seem to be most common recently.