The Fisher Bullet Space Pen writes in zero gravity, underwater, over grease, and in temperatures from -30°F to 250°F thanks to its nitrogen-pressurized PR4 ink cartridge. This aerospace technology packs into a compact 3.77-inch closed body that expands to a full-sized 5.35 inches when the cap is posted, creating the perfect balance between portability and writing comfort.

The matte black brass barrel provides a secure grip even with damp hands, while the removable pocket clip prevents the pen from rolling off surfaces or disappearing into pocket depths. Unlike standard ballpoints that fail in extreme conditions, the Fisher's pressurized cartridge delivers consistent ink flow regardless of writing angle or environmental challenges—making it equally reliable for outdoor adventures, laboratory work, or everyday note-taking.

Each Fisher Bullet Space Pen includes a lifetime warranty against manufacturing defects and arrives ready for immediate use with the reliable PR4 medium point black ink cartridge installed. When personalized through precision laser engraving, this NASA-proven writing tool becomes an engraved keepsake that performs flawlessly for decades while maintaining its distinctive profile.

Features

• Collapsible barrel makes the body 3.77in closed and 5.35in when posted
• Pressurized PR4 medium point black ballpoint pen ink
• Matte black finish with brass engraving
• Removable clip and friction pressure action
• Lifetime warranty against manufacturing defects.