The Bolt Action is Tactile Turn's signature mechanism and the pen they recommend first. Push the bolt forward along its J-shaped track and it locks the tip out; nudge it back and the spring retracts it. One smooth motion, no button to click and no cap to lose, and both sliding surfaces are machined extra smooth so the action feels great every time.
This one is titanium in the raw Machined finish, Short length. Titanium keeps it durable, lightweight and corrosion resistant, and the Short size is 5.1" long with a black Schmidt EasyFlow 9000 medium refill. It also takes a wide range of Parker-style refills. Machined in Dallas, Texas and backed by Tactile Turn's lifetime warranty.