It might take Pilot G2 refills, but make no mistake: Machine Era's Bolt Field Pen is a heritage-quality instrument. It's fully machined from solid stock, using a Swiss-type turning technique to create a two-part body that's extremely accurate, secured tightly, and polished by hand. The bolt-style opening action is quick, fluid, and fiddle-worthy, and the pen is available in stainless steel or brass, finished off with a fully machined clip in either aluminum or titanium.