Mil-Tac Tactical Defense Pen Refill Upgrade Kit - Waterproof Ink
Mil-Tac Knives and Tools
This TDP upgrade kit will work with all versions of the TDP. These all-weather pen refills write on wet paper and upside down in all weather conditions. This ball point refill was jointly developed with Rite-in-the-Rain and the Fisher Space Pen Company as a pressurized ball point refill with waterproof ink and will work in temperatures ranging from -30F to 250F. These pen refills work in conjunction with the Rite in the Rain paper notebooks also sold by MIL-TAC for an all weather combination for military, law enforcement, and outdoor sport enthusiasts to make sure that your notes are permanent and available.
This product is USA born and raised.