good, I think. just contact your local AVer, get age verified, then post a wanted post in the want section of the forums.
If you want a ECHo1 G36c cause it is cheap ($180) then you better save up, cause that ain't the price of most airsoft guns on the forms.
The only way you'd be getting that gun is through a private seller or someone who will custom order it for you. Most of the time the prices are double the american prices, so your echo1 g36c would be around $350 or more depending on the seller.
I'd check out cansoft guns, if you want to start playing more sooner then later (there are barely any retailers willing to custom order guns as of late)