About the MCM 400 Series Pens: Their unique shape that make them compact and easy to carry, while still allowing a thicker size section to grip and write comfortably.

• Comes with O-rings that can be applied to the radial grooves on writing barrel for more grip
• Compact (but still grippy) titanium clip
• Pen ships with a Fisher Space Pen cartridge
• Compatible with Parker style refills as well so you can find just about any refill type you want

-Grip, tip, top end, and clip: Satin finished titanium with two tone blue anodized finish
-Main body: Machined from ultra light and strong woven carbon fiber
-Click Mechanism: Matthew Martin has now updated all of his "click" model pens now use the superior Tuff-Writer 416-SS click mechanism. The 416-SS is precision machined in the USA to exacting tolerances from stainless steel and is far more durable than competing mechs.

About Matthew Martin: Matthew Martin is the son of renowned knife-maker R.J. Martin and it is clear the apple has not fallen far from the tree. This guy has been turning metal into chips since he was knee high to a grasshopper! Each MCM piece is crafted entirely by Matt in his shop from top grade materials and attention to detail.