The Bullet Ant 2.0 Titanium bolt action multitool pen is a remarkable innovation in the world of tactical gear, building on the success of its predecessor, the first-generation Bullet Ant.

Duane Tougas has built pens for nearly six years, but his newest models make the biggest bang. Thankfully the bang isn't literal. His top-selling pen is made out of bullet shells. Tougas, a 54 ...