It's just decoration, on real guns the hammer is used for the powder to explode but airsoft BB's don't have any powder so the hammer is for making the gun more realistic.
An Airsoft gun
A pump airsoft gun is a gun that has to be pumped every time before shooting. Ex. Airsoft shotgun
No
No
It is an airsoft gun based of the PPSH-41 gun
You never need a license to have an Airsoft gun.
No
No, it is an airsoft gun.
NO
If you use airsoft gun in public place or pretend it's a real gun - yes, you can be shoot. Do not use airsoft guns in public places!
It stands for Airsoft Gun Manafacturer.
kwa all the way