Arc Rail Adapter For Peltor Comtac I Ii Iii Tactical Headset, Military Airsoft Hearing Protection Electronic Headset Accessorie - Intercom Accessories - AliExpress
Remora™ Mount for 3M Peltor™ - Unity Tactical
Headset Adaptor set compatible with Helmet ARC Rail and Peltor Headset – DLP Tactical
Peltor ARC adaptors, left and right side attachment kit
1 Pair 3M Peltor ARC Rail Adapter Attachment Kit for All Rail Ballistic Helmets - Walmart.com