Our Bullet Cartridge pen makes use of, well, bullet cartridges. More specifically, they’re made out of a .30-06 and a .308, and make quite an impression. If you go for the brass, the oils from your hand will eventually cause patina (a thin greenish layer) to form. Some folks like it, but if you don’t, you can easily polish it away.

• Twist

• Diameter:  .45″

• Length:  5.4″

• Cross Refill