If you mean and Airsoft gun which shoots small 6mm plastic bb's the you should buy from either Evike.com or Airsoftgi.com. these guns are used for the same purpose as paintball guns. these are not air guns which shoot an excess of 750 fps.
The best place to buy is from a local store. Though online is cheaper, you do not get to meet a lot of players, and online shops are much less accountable for anything that happens to your gun.
Depends were you live some places you have to be 18 years or older to even buy an airsoft gun.
A place called pyramydair.com.
You can buy them at a store where they sell guns.
Yes
You can buy an Electric Airsoft Gun (AEG) online or at a sporting goods store.
The Saturday after you ordered it
yes it can.
Of what state and country
Airsplat or pyramydair
online,Walmart, sporting goods store, an airsoft gun store and a gun store.
Go To Google.com And Type In Cheap Air Soft Guns
Well, I only buy mine at Academy.