www.shortyusa.com
Canadian air gun supply
I'm sorry to say but airsoft is illegal in Australia.
Nerf gun
No
The best airsoft gun you could get for $150 would probably be an Aftermath gun, but you could get a JG M4 or M16 for under $150
See the related links.
The one you can afford
If you are just starting airsoft i would highly recommend an aeg, (airsoft electric gun) but if you are pro and experienced, a trained camouflaged sniper is the best, an invisible predator. However it does depend on the user of the gun. If you are asking performance wise then g&g makes the best airsoft guns on the market. (currently in the US)
I say twin ozez are the best cheap airsoft guns
dont get that gun walmart has the best beginer guns
Go to the Google website, and from the upper toolbar select IMAGES. On the search page, enter "airsoft" or "BB gun", and you should find hundreds of pictures.
Definitely Nerf.