Size:    Color:   
$77.62 Quantity: 
U.S. Pricing only.
ACH Head-Loc™ Retention System H-Nape

The Head-Loc RS was developed to improve safety, comfort and stability of chinstraps used in MICH/ACH ballistic helmets. Every component, down to each stitch pattern, was designed specifically for this purpose, giving the ACH greater utility than ever before. Custom adjustment tabs allow the helmet to be adjusted while wearing it, without any hanging loose ends. Simplified strap geometry makes the system 3X more stable than existing chinstraps.

This system has resulted from years of input and testing by some of the most respected operators in the USSOCOM community. Their demanding requirements for NVG stability, multiple environment versatility and overall performance are credit to the design today. Without their help, the Head-Loc chinstrap would not exist.

1. Side-by-side stability comparison

2. Rotational stability demo

3. Chinstrap adjustment demo

  • 3X more stable under rotational forces than standard issue system
  • Patented tabs provide one-handed adjustment while wearing the helmet
  • Straight force lines and unique design eliminate loose strap ends
  • Padded leather chin cup and nape pad provide support and protection
  • Custom webbing weave has greater durability and ventilation
  • Available in left-eye dominant (LED) configuration (buckle on right side)
  • The only chinstrap available in Tan that meets SOF DG2 IR specification
  • LWH version is available for Lightweight Marine Helmets
  • Airborne Certified for USSOCOM

Click here to view the Head-Loc™ chinstrap & helmet compatibility chart


If in stock, product(s) will ship within 3 business days. If the product is not in stock, Ops-Core Customer Service will contact you by email within 3 business days.

Chin Strap Sizing Guide
Since people have different shaped heads, helmet size (the size of the top of your head) is not always proportional to the chinstrap size (the size of your face). The Ops-Core retention system provides a significant performance advantage over traditional systems, but has less overall strap adjustment range. This is why we offer two retention system sizes instead of one to comfortably fit the full spectrum of users.


To ensure that you order the right size chinstrap, we recommend that you check your 'face size' with the following measurement technique. This is more accurate than relying on helmet size alone, and can save you the aggravation of buying the wrong size system.

Helmet size does not always match chinstrap size Sizing Graphic
Sizing Chart

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