Heretic Thoth Tactical Pen Toxic Green Aluminum

Modular design - 2 pens in 1.... 

OAL : 5.02" or remove the middle section 3.48"

Simply unscrew the barrel and remove the pen cartridge extension and the barrel and now you have 2 pen options in one.

Uses Lamy m22 Pen Refills

Aluminum 

Black Ano aluminum tip, and tails, with black clips, and hardware, 

Anodized Aluminum Colored barrel & bolt to match