In this tutorial, we learn how to make an airsoft gun out of homemade products. First, take an empty medicine bottle with the lid and drill a hole in the bottom of it that's as large as a Crayola marker. After this, take the cap and drill any size hole in it that you want. If you are going to use an air pump, drill the hole to that size. Now take your marker or a big pen and cut the pen, then take the ink off and take off the bottom cap. Put this in the bottom of the bottle with bb's and then blow. You will now have a homemade airsoft gun in just minutes.