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)

Put one dispenser
Put five redstone
Put two blocks

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

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)