Here is an awesome easy airsoft gun I built from Nighthawkinlight. link:http:// http://www.instructables.com/id/How-to-Make-a-Full-Auto-Airsoft-Minigun-Halo-Insp/ Highly recomended!!!! I built it for about 30$. My plan i am working on right now is to use the same compressed air method to build a paintball pistol with a 8 cap mag, its working out great so far. Here are the stats for the gun pictured.

PROS
Compressed air powered!!! (to me this is awesome so i dont have to spend $ on Co2, or a battery that you need to charge)
great range 250ft!
lighter than it looks
high rate of fire 50/ sec
sturdy design
very accurate

CONS
uses ammo up quickly
kinda large
takes a while to pump


PLZ RATE AND COMMENT PLZ