Fisher Space Pen has been trusted by NASA since 1967, 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 made in Boulder City, Nevada from brass and aluminum around that same cartridge, which turns out to solve writing in the rain, on a wall, or with greasy hands in a shop just as well as it solved writing in orbit.
NASA selected the AG7 Astronaut pen for Apollo 7 in 1967, and it went to the moon in 1969 with a design that has barely changed since. Press the top to extend the point and the side button to retract it. The Shuttle pen came out of the Space Shuttle program as a lighter, slimmer take on the AG7, with the same two button click, and it is the pen astronauts carry aboard the International Space Station today.
The Bullet pen is the icon, a 1948 design that earned a spot in the Museum of Modern Art. It caps down small enough for a wallet and posts the cap to become a full size writer. The Cap-O-Matic puts a one hand click in a cap that never comes off, and the Measure Twice adds a bolt action, a barrel ruler in inches and centimeters, and a tungsten carbide glass breaker for jobsite carry.
Raw brass Fisher pens age from bright gold toward warm brown with handling, and bare brass works against germs on contact, which makes a brass Bullet or Cap-O-Matic a smart loaner pen on a busy counter. Cerakote finishes in OD green, FDE, navy, and Black Cherry seal the metal for a finish that stays put. Our EDC pen materials guide breaks down how brass compares to titanium, copper, and aluminum.
Every Fisher model runs the same pressurized refills in fine and medium points, and each one ships with a small adapter that drops it into most Parker style pens. That is why the Microtech Siphon II and Hinderer Investigator run Fisher ink too. Our EDC pen refill guide shows which pens across our EDC pens collection take it, and why a sealed Fisher cartridge is the best refill to fly with.