Fisher Space Pen has been trusted by NASA astronauts since 1967 and still rides aboard the International Space Station today, all on the strength of Paul Fisher's pressurized ink cartridge: a sealed, nitrogen-charged refill that writes upside down, underwater, in extreme heat and cold, and in zero gravity. Every pen is machined from solid brass and aluminum in Boulder City, Nevada, and built around the same cartridge that solved writing in space, which happens to also solve writing in the rain, on a wall, or with greasy hands in a shop.
The Bullet pen is the icon, a design so clean it sits in MoMA's permanent collection, closing to pocket size and opening to a full-length writer in finishes from raw brass to Cerakote. The AG7 Astronaut pen is the exact anti-gravity design that flew on Apollo missions, while the Shuttle pen carries the space heritage into a slimmer click-action profile.
The Cap-O-Matic is the workhorse, one-hand cap-button operation in Cerakote colors from OD Green to Black Cherry, and the Measure Twice tactical pen adds jobsite function to the same guts. Every model takes the same pressurized refills in fine and medium points, so the pen you buy once writes for decades. The rest of our machined pens from makers like Tactile Turn round out the everyday writing shelf.