yes, you can and need a license to own an airsoft gun in nyc.
No, you do not need a gun license to buy magazines.
yes
No.
no
Yes, you do not need a gun license to buy a clip, but you may need one to legally possess and use it depending on local laws.
no
Generally, no.
yes, you just need a license
No ... but their may be an age requirement.
No.
It would depend on what state you live in ... but in most states you would not need a license ot own a softair gun ...