DIY Refillable Inert OC Practice Unit KarambitKnives,com

In this short video I’ll demonstrate how I recycled an empty OC unit into a refillable inert practice unit for only a few dollars worth of materials and 20 minutes of effort.

Updates: The newest POM inert units are dimensionally identical to the live units and accept a pocket clip identical to the live unit version I built (however, they don’t come with one out of the box so you might still want to make your own).

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If you found any of this useful, using the links below will help offset my costs:

POM pepper spray is excellent stuff with more than 1% major capsaicinoids content and convenient features:

MACE inert training sprays are consistently the cheapest option and excellent value for the money:

These are the brass valve stems I use:

The core removal tools and extra valve cores I use:

The bike pump I use, which has a nice “high pressure” mode:

The squeeze bottles I use:

And of course, the JB weld:

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KarambitKnives.com