You need both.
Not if its not designed that way.
There are too many types: airguns that are used in the auto industry, Air Rifles, Air pistols, Air soft guns.
Yes it is possible
Air-soft vest because you can hold more stuff and it provides more padding
No, not if it's designed to do so.
No it is not possible
http://www.hobbytron.com/SpringUTGBlackS368BHSniperRifleLPSOFTS368BH.html
It has to be electric (AEG).
My friend has completed both Air Alert and Jump Manual and according to him Jump Manual yield results.....
soft less packed and able to get more air to burn
Look in your auto manual.
Your best source would be to write to the manufacture