USGI Ops-Core ACH/ECH IRS Improved Retention System H-Nape Helmet Chin Strap export-brand All buckles are ITW-Nexus

All buckles are ITW-Nexus

Two output levels — high for maximum light

The LBX Tactical LBX-1016 Medium Window Insert Pouch features a window for easy item identification

Always retains shape

25” or thinner to attach to eyelets

USGI Ops-Core ACH/ECH IRS Improved Retention System H-Nape Helmet Chin Strap export-brand All buckles are ITW-NexusONE SIZE FITS MOST Developed by Ops Core, the ECH ACH Improved Retention System (IRS) is a complete assembly in OCP Tan 499 to retrofit for ACH, ECH, MICH or Ops Core helmets. This is standard equipment on the new Enhanced Combat Helmet that is replacing the current ACH, or a great upgrade to your current helmet. The system is adjustable for one size fits all design. The straps are adjustable using ladderlock buckles that insure a snug fit to the chin