Mark One is a custom machined, all-metal, retractable pen with a ceramic based exterior coating for long lasting durability. It’s built for rollerball refill, and has a satisfying-as-heck custom click mechanism.
Mark One has a completely seamless design, which was quite an engineering feat. The pen has no excess ornamentation or logo. The polished steel knocks provide a nice little accent to each, and give Mark One a sophisticated look without looking overly tactical.
It is made entirely out of metal, including the custom click mechanism. The pen is coated with Cerakote, which is an extremely durable ceramic-polymer coating. It gives the pen a really nice, matte feel. This pen should last a lifetime.
Mark One ships with Schmidt P8126 rollerball. This is a fantastic cartridge; the ink flows smoothly and dries quickly. However, Mark One will accept any Parker-style refill, which means there are many options for pen cartridges that the pen will accept.