Tactical Radio Helmet Headset w/ Active Hearing Protection - Headset O – Comm Gear Supply
Helmet Rail Adapter Kit for Headsets | HHV
Tactical Headset Adapter M-LOK Helmet Rail Adapter For Howard Leight Impact Sports Electronic Earmuffs Shooting Headset - AliExpress
Earmor MilPro M32x Mlok Version
Unity Tactical MARK 2.0 Headset Adapter for M-TEK FLUX Helmets (Color: Black), Tactical Gear/Apparel, Communication - Evike.com Airsoft Superstore
MARK™ for Ops-Core® AMP® Communication Headsets - UNITY Tactical
Where can I find these, I have a Hard head veterans helmet already but I don't know where to find the mounts for the ear protection in that picture, or the brand