Try the website for Trinity airsoft.
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.
if it is electric, or gas, yes. if its spring, its not.
The website HobbyTron offers an array of remote control vehicles and airsoft weapons and rifle. Some of its more popular products are HobbyTron's range of RC helicopters and its airsoft assault rifles like its gold AK-47 spring assault rifle.
Usually, the only non electric rifle this is also automatic will be CO2 powered.
The M82 by Barrett Firearms Manufacturing. it's a .50 cal sniper rifle. to be more to the point the airsoft rifle is based on the later M82A1. Unless your talking about an assault rifle, that would be the Valmet m82.
it would be VERY very VERY difficut but yes you could pull it off
1127mm according to airsoftgi.com
THAT DOESNT WORK BECUASE THEY ARE TWO DIFFRENT GUNS. AN AK47 IS AN ASSAULT RIFLE. A SNIPER IS A DIFFERENT KIND OF RIFLE.
You will have to check with the company that made it.
If the gun is spring then it is most likely not automatic but if its electric it is most likely automatic.
neither, also it doesn't matter which one is "stronger", if you have a a high FPS (strong), you can't play on fields