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Cold Harbour Supply

Cold Harbour X ISLE MFG MH25 Defender Armour

Cold Harbour X ISLE MFG MH25 Defender Armour

Regular price $259.99 CAD
Regular price Sale price $259.99 CAD
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The Cold Harbour x ISLE MFG MH25 Defender Armour is a lens protector for Infiray MH25, MH25W and ML19 family of devices. Using the same proven, multi-hit rated, proprietary TPU material as our COTI Defender, the MH25 Defender can be reliably used in any force-on-force scenario with no damage to the host device. 

The MH25 Defender Armour is precision-made and slips over the factory objective lens shroud with the perfect balance of retention and ease of install. The natural texture of the TPU material provides positive purchase against the lens shroud, making installation secure. A built-in throw-lever allows users to quickly adjust focus on the objective lens, improving the user experience. A cut-out retains the ability for users to close the iris if additional protection against dust or debris is required. The MH25 Defender can be easily installed and uninstalled leaving no marks on the host device. 

Recognizing that each user's requirements are unique, three different protection levels are available that include the following components:

  • Optical-Grade multi-coated Germanium Sacrificial lens optimized for 8-14µm wavelength, is tested to absorb up to a 0.2g BB at 350fps and UTM and Simunitions at point blank range with no penetration. Not multi-impact-rated
  • Multi-Impact Rated custom-manufactured Titanium Honeycomb

Level 2 - Germanium sacrificial lens only. This option provides impact protection with the highest levels of performance with no perceived signal degradation. Ideal for users who want maximum performance and thermal signal while still protecting the host lens. Not ideal for situations where multi-hit capabilities are required.

Level 3 - Titanium honeycomb only. A custom-fabricated titanium honeycomb offers multi-hit resistance and has been tested for 350fps with 0.2g BBs at point blank range. Depending on frangibility of ammo relative to the ruggedness of the titanium, spalling of projectiles is possible. There is approximately ~10% reduction in thermal signal. Due to reduced thermal signal, there is a benefit of reduced thermal noise. 

Level 4 - Germanium lens + titanium honeycomb. The ultimate in protection. Both materials are used in tandem for maximum protection and safeguards against spalling. While this combination is multi-impact rated, due to the fragile nature of germanium and spalling, durability of the germanium is not guaranteed.


Designed by ISLE MFG and made in the USA.

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