Say hello to Marushin's new COP357. As you can see from the picture, it has 4 barrels instead of one. Unfortunately it can only fire 4 times but that's it's only downfall. It looks very realistic even though it's made of ABS plastic but to make up for it, it packs quite a punch even for it's small size at around 250 fps on its good days.
Reloading it is rather interesting as you will have to pull back the rear iron site then the barrel will flip open. Each hole has its own hop up unit and you load one BB each, which is a total of 4. Insert the gas underneath the pistol grip and you're ready to fire!
This also comes in 2 different forms. The Black Heavyweight and the Silver Long Barrel verison.