FAST Helmet Rail Adapter set for Comtac I and Comtac II headsets - Foliage green | Tactical equipment \ Radios and accessories | GTAC.pl - outdoor, tactical equipment and EDC in one place.
ACM ARC Helmet Rail Adapter for Peltor Comtac II/III
Amazon.com: U-174 NATO/Military to Civilian Wiring Adapter Compatible with Peltor Comtac : Electronics