As we know Medibuds sells the pre-filled cartos with CO2 extracted oil. Well, back on Agora he used to sell 2.5mL vials with the same stuff for use in your own Kanger tank and so forth. Now I can't find this product from ANYONE and short of making it myself I want to just buy some THC oil from someone! Who is selling it and where?
Searching on Grams (not sure I am allowed to post URLs, look it up) for "THC vape oil co2" shows stuff on Middle Earth from humboldtfarms. No idea how good it is.