Step 1: Dismantle the Gun
Step 2: Playing About With the O-ring
In picture 1 you can see that I've removed the o-ring. You need to do this. Once you have done that you need to wrap a thin piece of tape around where the o-ring was. This makes the o-ring larger and gives the cylinder a tight seal.
Step 3: Stretching the Spring
Once you have the spring in your hand, stretch it for a while until you can see it has grown in length. Then put it back from where you got it and put it back into the cylinder.
Place the cylinder back into the gun.
Step 4: Dismantling Tye Light (optional)
Undo these and cut the wires at the end towards the light.
Once the light is off, you neef to unscrew the grey thing it's connected to. We will be using this to cover up the hole.
Step 5: You Remember That Grey Thing?
Throw away the piece in the middle of picture 2.
Then put the two other pieces together.
Once you gave done all of that, you must super glue it too it's original place.
Step 6: Assemble Once Again
Enjoy shooting your nerf gun.