IMSA Helmet headset to Peltor wiring adapter IM-P - UFQaviation
3M™ PELTOR™ WS™ Adapter, FL6007-WS5-01 GB, Neutrik Plug, 10 EA/CS | 3M United States
Amazon.com: Tesorrio Peltor Comtac I & II ARC Adapter - Tactical Helmet Rail Suspension Mount Version for Airsoft Activities (Black) : Sports & Outdoors
Amazon.com: JFFCESTORE Tactical Helmet Headset Support ARC Adapter/Tactical Helmet Rail (19-21mm) Suspension Headphones Bracket left & Right Side Attachments For Peltor Comtac (Black) : Sports & Outdoors