This gun may look small but trust me its very powerful with the right elastic band.

Step 1: Get the Parts

These are the parts you need.
10 blue rings
1 grey connector
1 blue rod
1 black Y connector
1 orange connector
1 elastic band

Step 2: The Main Body

add the grey connector and black Y connector to the blue rod like this.

add the 10 blue rings to the rod like this

double up the elastic band and add to the orange connector like this

put the firing mechinism on the end of the blue rod and stretch it back like this

hold the grey connector then hold the orange connector and pull it off hard but not to hard. hope you enjoy