Granted, it’s mounted a bit far back in this image, but this is the Fast Attach Mount w/ Low Profile Integrated Light Body from Echo Arms.
The design utilizes an integrated Magpul M-LOK interface to mount directly to their Fast Attach Mount which attaches to the helmet via Velcro.
It uses the sane thread interface as Surefire E-Series and Scout lights meaning you’ve got lots of head and tailcap options.
With the Helmet Light sharing the same tailswitch, battery and head as the Surefire M300 Scout, pairing the Helmet Light with a Surefire M300 weaponlight provides a backup solution in the event a weaponlight fails and needs replacement parts.
This new helmet light is currently available for pre-order.