no it isn't but it has very hard plastic
No. It is considerably lighter than it's real steel counterpart.
The M4 3181 AEG is always nice. Here's a link: http://www.hobbytron.com/AirsoftAssaultRifleGunAEGWAA10CH3181.html
It's about 350. Has very good range.
almost every gun for airsoft uses a 6mm (milimeter) BB. try that.
The 'M4 3181 AEG FPS-300 Electric Airsoft Rifle, M203 Spring Grenade Launcher' is a HOT airsoft rifle. Not only does it offer a high power electric machine gun that shoots full or semi auto, it also has a grenade launcher. It is priced around $90, not bad for a rifle and grenade launcher.
just 3 shot shotgun shells
The M4 3181 AEG is always nice. Here's a link: http://www.hobbytron.com/AirsoftAssaultRifleGunAEGWAA10CH3181.html
its not a grenade it just looks like a grenade launcher. it just shoots one bullet at a time
The M4 3181 AEG electric rifle with M203 spring grenade launcher typically has a magazine capacity of around 300 rounds.
yes, 3181 is a prime number
I would stick to the 8.4v Ni-MH one it comes with and buy a duplicate because if you use something stronger you'll fry the plastic gearbox.
346-441-3181