Fisher Space Pen Bullet Pen Air Force 400AF - Writes Upside Down At Any Angle In Extreme Temperatures And Underwater

Compact and purpose-built, the Fisher Space Pen Bullet Pen Air Force 400AF delivers reliable writing in the most challenging conditions. Designed for professionals who work in the field—pilots, technicians, and collectors—it combines a chrome finish with the U.S. Air Force wing and a pressurized ink system that performs when others fail.

• Length: 3.75" (9.53 cm) closed for easy pocket carry
• Finish and insignia: Chrome finish with the U.S. Air Force wing
• Cartridge: Pressurized PR4 cartridge ensures consistent ink flow in any orientation
• Ink and point: Black ink with a Medium point for balanced, smooth writing
• Writeability under extreme conditions: Writes upside down, at any angle, in extreme temperatures, underwater, and over grease
• Packaging: Boxed, ready for gifting or resale

This pen translates its specialized design into practical benefits: dependable ink delivery in the field, even when gravity or environmental conditions aren’t ideal. The compact 3.75" body fits neatly in a pocket or tool kit, while the chrome finish and Air Force insignia convey a professional, durable aesthetic. Whether you’re documenting measurements, signing off on maintenance logs, or simply taking notes in tough conditions, this Space Pen keeps writing when other pens stop.