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
Amazon.com : DLP Tactical Helmet ARC Rail Adaptor Set Compatible with Peltor ComTac Headsets (Foliage Green) : Sports & Outdoors
Conversion Tips for MSA Sordin Headsets compatible with 3M Peltor Comtac ARC Rail Headset Adapters Black - Amazon.com