sounds like chinese marui knockoffs to me and thats really not good... selling those to the general public and advertising them only encourages kids to buy them cause then they can be like in CS and be uber 1337.
as for how they managed to get them into the country im sure there are alot of people who would like to know.
edit: i would assume since he said flyer that he meant in an actual print advert like in a newspaper or magazine.
Stop Sulking About It! - Prioritize & Organize! - Canadian Airsoft Is Not A Crime!
Secondary: FMU SIG P226