Picture of K'NEX derringer
small, simple, and very powerful for it's size.
Remove these adsRemove these ads by Signing Up

Step 1: What you need

Picture of what you need

Step 2: Step one

Picture of step one

Step 3: Step two

Picture of step two

Step 4: Step three

Picture of step three

Step 5: Step four

Picture of step four

Step 6: Rubber band and cocking

Picture of rubber band and cocking

Step 7: Firing

Picture of firing
put a tiny green rod in the front.
hold by white rod and push side of barrel down with thumb.