Introduction: Airsoft Grenade

Two simple airsoft grenades that don't use any explosives!!!!! I need help with this one please
The stopper comes out and the reaction when it is contained can't blow the container (unless you hit it with a baseball bat).HELP!!!
The other grenade is coming soon!!

Step 1: Paint

Paint the bottle
Sand it first so the paint sticks

Step 2: Cut a Hole

Cut a hole in the lid.
I lined it with silicon to make a gasket in it.

Step 3: Trim the Syringe

I had to trim the thumb and finger holds to fit it under the cap.

Step 4: Assembly

Put it all together

Step 5: Fill It Up!

I Filed it up with half a teaspoon baking soda in the container with about 3-4 teaspoons of water. For the syringe use about 1 teaspoon of citric acid and about 1 teaspoon of water. If you add more water the reaction will be stronger and a lot faster.