Tactile Turn Bolt Action Pen. Machined from any number of solid metals (copper, zirconium, titanium, bronze, etc) uses multiple types of inserts to include the G2 gel, and in a pinch can be rammed through someone’s skull! Had mine for three years now and love it, plus the copper is naturally anti microbial for you germophobes.
99 Gazinks.
https://tactileturn.com/