Heretic Thoth Titanium Green Aluminum Barrel Tactical Pen

Modular design - 2 pens in 1....  OAL : 5.02" or remove the middle section 3.48" Simply unscrew the barrel and remove the pen cartridge extension and the barrel and now you have 2 pen options in one. Uses Fisher Space Pen Refills Aluminum and Titanium  Stonewashed Titanium Cap and Tail Green Anodized Barrel Battleworn Ti Bolt and Stonewashed Ti Pocket Clip