The M4 Cap-O-Matic Space Pen has been available for many years in a variety of different colors & finishes, but now for the first time it will be available in its most basic form – in the RAW! 

The new M4RAW Brass Cap-O-Matic Space Pen features a stylishly rustic appearance and will develop its own patina pattern over time through use, making yours more and more unique to you as time goes on. 

Containing a Fisher Space Pen® Pressurized Ink Refill Cartridge, the M4 Cap-O-Matic will write upside down - at any angle, under water, through grease, in extreme temperatures (-30 to +250 degrees F), on almost any surface, three times longer than the average pen, and of course in the gravity free vacuum of space, and all are lifetime guaranteed for quality against all manufacturing defects -  American Technology

*Please Note*

 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 he or she handles their pen.  It can always be polished to restore its original look. 

Fisher Cap-O-Matic Raw Brass

  • Overall Size - 5 1/8 in. x 3/8 in. (130mm x 10mm)
  • Weight - 12 g
  • Composition - Brass
  • Appointments - Brass
  • Engraving - This pen does not have a space for engraving or the material simply does not allow us to engrave.

Maximum number of characters: 28


Maximum number of characters: 28


Allowed file extensions to upload: png,jpg,psd,ai,eps,tiff


Maximum number of characters: 100


Need Assistance? Contact us at


Be the first to review this product.

Write A Review
  • Quality