ECH/ACH IRS Improved Retention Replacement Hardware
Developed by Ops-Core, the ECH IRS - Improved Retention System- is a complete assembly in OCP Tan 499 to retrofit for ACH & MICH helmets and is included in the new issue ECH. Special length ballistic hardware is required to secure the retention system. These frequently become loose and finding a replacement is hell. Kit contains 4 Screws & 4 T-Nuts.
- ACH Mounting screw, shoulder, 15MM
- ECH Mounting screw, shoulder, 17.5MM
- Nut, T design to fit retention slots