3M PELTOR Accessory Rail Connector (ARC), Helmet Rail System Mounting Attachment Kit, Left and Right Side Attachments, Conversion Kit for FAST Helmet Rail Connection System, Military Tactical Industry: Amazon.com: Tools & Home
MARK™ for 3M™ Peltor™-Style Headsets - UNITY Tactical
Helmet Rail Adapter Kit for Headsets | HHV
Tactical helmet OPS CORE rail ARC track adapter COMTAC bracket for Peltor COMTAC I II III series noise reduction headphones BK|Intercom Accessories| - AliExpress