From the brand
For generations, the Cap-O-Matic has been the workhorse of the Fisher Space Pen lineup. Built for people who depend on their pen every day, it combines simple, one-handed activation with Fisher's proven pressurized ink technology. The M4RAW Cap-O-Matic Space Pen’s classic design is finished in raw brass, bringing a warm, natural character to a trusted everyday writing instrument.
Crafted from a copper-rich brass alloy with an uncoated, unfinished surface, the M4RAW is designed to change with use. Over time, the brass develops a unique patina shaped by how you carry, use, and handle your pen. No two M4RAW pens will ever look exactly the same. Press the flat end of the non-removable cap to extend or retract the writing point. Simple, practical, and ready when you are.
Inside the raw brass exterior is Fisher's proven pressurized ink technology. The M4RAW writes upside down, underwater, through grease, and in extreme temperatures from -30°F to +250°F. It can write on almost any surface and lasts up to three times longer than the average ballpoint pen.
The M4Raw features a raw, unfinished brass casing designed to change with use. Over time, each pen will develop a unique patina influenced by its environment, your body's chemistry, and the way you handle it. Fingerprints, scratches, polish marks, and changes in color are natural characteristics of raw brass. No two pens will develop exactly the same finish, making your M4RAW uniquely yours. If you prefer its original look, the brass can always be polished to restore its finish.