Minecraft Machinegun

Hello guys whatsup!??today im gonna show you how to make machine gun on minecraft all you need is:
1lever
1dispenser
2blocks
7redstone
4redstonetorch
Anything that shoots(arrows,snowball,fireball)

Step 1: Firsttt

Put one dispenser
Put five redstone
Put two blocks

Step 2: The Red

Put four redstone torch
Put two redstone on the block (like in the picture)
Put lever on the redstone (like in the picture)

Step 3: Fire!!

Fill the dispenser with anything shoots (i use snow cause its not gonna mess up)
Pull the lever and fire those villagers hahahahaha(i hate their nose)