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That is where the pellets are stored in the gun.
Airsoft is legal in many countries. Any gun that shoots plastic pellets are airsoft guns.
No. Paintballs are much MUCH larger than airsoft pellets (.50-inch and higher), the guns' feed mechanisms are completely different.
of course not, although its not safe to swallow airsoft pellets are plastc, not led.
No it's not a good idea. The pellets are not designed for BB guns