Tactical Headset Adapter M-LOK Helmet Rail Adapter For Howard Leight Impact Sports Electronic Earmuffs Shooting Headset - AliExpress
Peltor Comtac Headset adaptor for Team Wendy & M-Lok compatible helmet – DLP Tactical
Unity Adapter Kit for AMP Ops-Core Rail Mounts for Hard Head Veterans/ – Comm Gear Supply
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