KB3D Nexus: N40 (Modular GasMask System)

Universal thread

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Developed in the KB3D lab, the Nexus is The Modular Gas Mask System. Built around a universal interface—dubbed The Insert—each module screws securely into the mask’s insert, allowing the function to be changed as required.

The Nexus: N40 Adapter module converts the Nexus front port to a standard 40 mm NATO thread, allowing compatibility with a wide range of accessories and devices. Whether for filters, hoses, valves, or other modular attachments, the N40 Adapter serves as the bridge between the Nexus ecosystem and external systems.

Please select your gas mask model from the dropdown menu to ensure the correct module is supplied. If you’re unsure, please refer to the compatibility guide linked below. 

Disclaimer: All products are sold as novelty items only. Use responsibly and at your own risk. Misuse can be dangerous. Any included safety features are supportive only and do not replace proper precautions, supervision, or established safe practices. We accept no responsibility for any injury, harm, or misuse arising from the use of these products.