Amazon.com: 1Pair Headset Helmet Adapter, ARC Rail Adaptor Suspension Headphones Bracket Hunting Earmuffs Support Left & Right Side Attachments Only for comtac2 Series Headphones (Black) Walker Razor Helmet : Sports & Outdoors
3M Peltor FL5063-02 Radio Adapter for Comtac III ACH Headsets - Motorola APX, SRX, XPR
Team Wendy 3.0 Helmet Rail Headset Adapter for Peltor / Sordin / Walke – bifrostgear
IMSA Helmet headset to Peltor wiring adapter IM-P - UFQaviation
Headset and Helmet Mount Adaptors – Gibbous Outfitters