Photo 1 is gun, photo 2 compared to Nerf Elite Mega Dart, photo 3 compared to Knex Atlas 45.
Step 1: About
This is an impractical but working micro Knex gun. It uses micro Knex (smaller than normal Knex). It actually shoots 15 feet and there is no way to make one smaller than this.
-nothing can be (practically) smaller, unless Knex makes smaller sets than these.
-shoots hard for its tiny size.
-easy to lose (if I wanted to, I could eat it XD)
Step 2: Ram
Micro green connector
Micro yellow rod
Step 3: Barrel and Trigger
Start with yellow rod and follow the pics. It can't get easier. This includes the trigger too. Do not attach the small yellow connector to the front, I just used it so I could get a grip on it while I build it. My hands are very large.
Step 4: Firing
Pull ram back and insert a black rod. Push the trigger to fire. Rubber bands needed. Hold by black connector, as this is the handle.