This gun launches knex wheels 20-30 feet. It should be pretty easy to build. I hope you enjoy! (Please rate and comment)
Step 1: Building the Slide/Barrel
Just build what you see in the pictures. this is what the wheel/disc slides on. It shouldn't be too hard.
Step 2: Building the Handle and Trigger
Again, just follow these pictures, this may be a little harder, but you can do it!
Step 3: Putting It All Together
Step 4: Adding the Rubber Bands
The rubber bands go here. Look at the pictures! They're help!
Step 5: Loading and Firing
Now for the fun part!!!!!