I just have a Beretta look alike. It weighs like a pound, has a flash suppressor and a blue flashlight on it. It is almost entirely metal except for a few parts. My friend has an all metal M4 that is electric and is really cool looking.
Yea, it's kind of like paintball. You can play scenario games as well. Pretty much if you get hit, it's like paintball and you're out. Although it does require that you play with people that won't cheat and say they didn't get hit when they actually did.