American companies till state that they will ship to Canada. A meth dealer in the USA could ship to Canada as well. However that doesnt mean it will make it. Once its out of the retailers hands and they have your money, they will most likely dust their hands of it. Its better to buy in country, and unfortunetly a tight or low budget is not something you can work with due to how the laws in regards to airsoft work.
Please take the time to fill in your profile, Where your from, your birthday etc.
This forum holds alot of information. Please keep in mind before starting a new thread, that there maybe an existing one already. Near the upper right hand corner next to the quick links and log out tab is the search tab. With that you can attempt to see if there is a thread on the topic, dont get discouraged if you dont find something right away, change up your search words as well, the search system doesnt just find tittles it looks for word matches in the content as well. If there is an existing thread on the topic and something wasnt clear, dont be afraid to necro post, despite what some douche bags say, its perfectly fine.
Im sure you have alot of questions, and in time you will find all the answers. Theres alot to learn and it cant be picked up in a week or two. But Im time you will learn what you need.
Heres a little reading Id like you to have a look at.
http://www.airsoftcanada.com/showthread.php?t=51609
It will shed a little light on airsoft in Canada in general.
Now as for airsoft in Canada, just as a general consensus this website and the majority of its members follows the 18 years of age rule. Meaning that, it is recommended that a person be the age of 18, before they aquire their first gun. It is recommended because 18 is the recognised age where a person can be held legally responsible for their actions. Now it maynot be illegal in all provinces to own airsoft, but I do believe there is a province out there where there is an actual law stating that one must be 18 to purchase. Which one that is, I cannot remeber. Hopefully someone can perk up and jump in on that part. The majority of fields used for airsoft play usually require that a person be 18 years of age as well, although I have heard of fields where there have been players as young as 16, with parental consent.
This website has a process called age verifacation, where if you are 18 or older you can meet with a volunteer representative of this website who will meet with you in person, there is no way around this, no phone, no webcam, in person only, where they will require to see a legitimate piece of photo identifacation. After the process is completed, it can take sometime as this is all volunteer work, you will be granted access to this websites buy and sell section, where you can find both new and used guns, for fair and competative prices. Although its not always the case, it is sort of an open market.
Finally this website also has a FAQ section that holds some useful info,it may not be entirely up to date, but I suggest you poke around in there as well. You may find something handy.
Cheers.