Remember: whenever using an object that shoots projectiles, DO NOT AIM AT SOMEONE'S FACE! I will not be responsible if anyone is hurt.
Step 1: Requirements
-A reynolds pen
-A reynolds Eraser/Rewriter pen
-X-acto knife (Any sharp blade will do)
-Isolating tape (Or whatever it's called)
-A Bic mechanical pen
Step 2: Making the air chamber
Step 4: Assembling the gun
Tip: If the cap can't move easily, use soap.
Right now, it looks nothing like a rifle, but it works.Go to the next step for customisation.
Step 5: Customisation
Wrap the air chamber and the barrel with tape.