Nightgear.co.uk are now stocking a range of military helmets:
At Nightgear.co.uk we have recently expanded our range to include military helmet brands like Ops Core. They produce a number of helmet types, a few of which can be seen in a few films and computer games such as their popular Ops-Core FAST Helmets and are often praised for their versatile attachment platform system.
Check them out at http://www.nightgear.co.uk/Ops-Core/631ngb.htm