This pen casing is RAW UNFINISHED BRASS. Over time, each pen will develop a unique patina as it responds to the environment, owner's body chemistry, and the way they handle their pen. It can always be polished to restore its original look.

Any engraving will appear very subtle.

A portion of the proceeds from the sale of each M4RAW will be donated to support Feeding America - Feeding America

Crafted from a copper-rich brass alloy, the Raw Brass Cap-o-Matic Space Pen features natural antimicrobial—particularly antibacterial—properties inherent to copper.

The raw brass finish is left uncoated, allowing the metal surface to remain exposed and gradually develop a natural patina shaped by handling, air exposure, and time.

At Fisher Space Pen, we note several models of pens that we consider to be the “backbone” of our business. While the AG7, Bullet and Shuttle Series pens have always been the stars of the stories, the classic Cap-O-Matic Space Pen has truly been the blue-collar, workhorse of the bunch. Single hand activation makes this model the pen of choice for construction crews, law enforcement, firefighters, military, first responders, medical professionals, outdoorsman and women and anyone who demands dependability in their writing instruments. The raw brass finish is durable, while aesthetically appealing to the eye. The creation of the Cap-O-Matic allowed Fisher Space Pen to offer the same technology used by astronauts, in a single hand activation but at a price that everyone can afford!

The Cap-O-Matic series features a non-removable cap. Press the flat end of the cap to extend or retract the point.

Each Cap-o-Matic is equipped with a pressurized PR-style ink refill cartridge, ensuring the same exceptional capabilities that are characteristic of Fisher products. These pens will write upside down, at any angle, underwater, through grease, and in extreme temperatures ranging from -30 to +250 degrees F. They perform on almost any surface, last three times longer than the average pen, and are reliable even in the gravity-free environment of space. Additionally, all our pens come with a lifetime guarantee against manufacturing defects, ensuring lasting quality.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.