Hard Head Veteran Helmet OTTO Ear Pro How To

Published on April 13, 2021
Duration: 8:37

This guide details how to adapt OTTO Range SA ear protection for mounting onto a Hard Head Veterans ballistic helmet using M-LOK rails. It involves cannibalizing parts from both the OTTO and HHV ear pro kits, modifying the HHV M-LOK adapter, and reassembling the components with specific hardware. The process allows for secure, adjustable ear protection integration with the helmet platform.

Quick Summary

To mount OTTO ear protection to a Hard Head Veterans helmet, you'll need to modify the HHV M-LOK plastic piece by drilling its hole slightly larger. You'll then use M4 screws and washers, cannibalized parts from both OTTO and HHV kits, and reassemble the ear pro onto the helmet's M-LOK rails for adjustable and secure hearing protection.

Chapters

  1. 00:00Introduction: Helmet and Ear Pro Setup
  2. 00:10Credit to Christian from OTTO for the PDF Tutorial
  3. 00:24First Look at Hard Head Veterans Helmet
  4. 00:40Review of OTTO Range SA Ear Pro
  5. 00:50Helmet as a Platform for Gear
  6. 01:02Required Tools and Hardware
  7. 01:12M-LOK Rails and Hardware Store Trip
  8. 01:27M4 Screws and T-Nuts
  9. 01:42Cannibalizing OTTO and HHV Kits
  10. 02:03Parts Needed from HHV Kit
  11. 02:09Disassembling OTTO Ear Pro Kit
  12. 02:25Using OTTO Arms and Spring Hardware
  13. 02:45Modifying the HHV M-LOK Piece
  14. 02:56Drilling and Fitting the M-LOK Piece
  15. 03:10Assembling the Adapter
  16. 03:31Attaching the T-Nut
  17. 03:40Mounting Considerations (Eye Pro)
  18. 03:48Mounting the Ear Pro Adapter
  19. 03:56Attaching OTTO Ear Cups to Arms
  20. 04:04Adjusting Tension and Fit
  21. 04:14Storage and Tension Relief
  22. 04:29Final Fit and Tension Check
  23. 04:35Rotating Ear Pro Out of the Way
  24. 04:44Cord Management Options
  25. 04:54Conclusion and Thanks
  26. 05:04Q&A Submission Information

Frequently Asked Questions

What specific hardware is needed to mount OTTO ear protection to a Hard Head Veterans helmet?

You will need two M4 screws, approximately 3/4 inch in length, and a couple of small washers with an inner diameter of about 3/8 inch. These are sourced from a hardware store, as the M-LOK T-nuts for the HHV helmet use a smaller thread pitch than standard.

What modifications are required to attach OTTO ear pro to a Hard Head Veterans helmet?

The primary modification involves drilling the existing hole in the Hard Head Veterans M-LOK plastic piece slightly larger to accommodate the M-LOK plate's screw. This ensures proper alignment and secure attachment of the ear protection adapter.

Can I use the original mounting hardware from OTTO ear protection with a Hard Head Veterans helmet?

No, you cannot directly use the original Ops-Core style mount from the OTTO ear pro. This guide requires cannibalizing parts from both the OTTO kit (arms, spring mechanism) and the Hard Head Veterans ear pro kit (M-LOK plastic piece, T-nut, M-LOK plate) to create a custom adapter.

How do the OTTO ear protection arms function once mounted on the helmet?

The OTTO ear pro arms are designed to snap onto the ear cups and attach to the helmet adapter. They allow for adjustable tension against your ears and can be rotated outward for storage when not in use, providing flexibility and comfort.

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