The finished product.
Step 1: Step 1
You first need a pilot G-2 07.
Step 2: Step 2
Unscrew the top part from the bottom part.
Step 3: Step 3
Remove all of the stuff on the inside.
Step 4: Step 4
Set up the pen as shown on the picture.
Step 5: Step 5
Use the ink stick included with the pen to push everything back until you hear a click.
Step 6: Step 6
Place the ink stick in the center and screw on the top to disguise the pen gun.