TOPS PRESENTS: THE 'S.O.P': = 'SPEC OPS PEN' (DESIGN PATENT PENDING) This ‘Tactical Pen’ has become a practical, stylish, and functional addition to Tops arsenal of Tools. This Pen is armor plated in G-10 or Linen Micarta and individually handcrafted by the skilled knife makers at TOPS. This pen will serve in the air, on land and sea. They are functional in any climate and terrain. The pressurized ink cartridge by ‘Fisher Space Pens’ will write on almost any surface.