To make this gun with 10 bullets you will need the following parts (click on the picture below to enlarge it):
Here are the instructions:
This is all my own design. This is about the best one you can make anywhere which you can hold. Ive seen alot which you just leave on the floor. I find white rods work best but you can probably use larger rods aswell. If in the future I might come up with a chain upgrade so it shoots more bullets per second. Please check out my other guns and the duck shoot for making a target.