S10/FM12 Modular System: Insert

This is the S10/FM12 insert, which is required for all the S10/FM12 modules. - S10/FM12 Modular system.

This insert provides the thread nessessary for the S10/FM12 Modular system.

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The nut on this insert has a reverse thread. This prevents the insert from unscrewing when removing modules.

When you purchase a module, you will be given the option to have one free insert with your order. 

Gas mask not include. Ensure you select the correct insert/modules. These items are novelty, and to be used at your own risk.