[R.I.T.Z]

I do apologize if this has been posted, but I'm looking for a 16inch RAS/RIS rail system or what ever you want to call it. and so far only Madbull makes them. and after staring at their site for and hour, I found a few retailers which carry one of them being Evike, but dude to the horror stories I've heard of them shipping to Canada I'm staying away from them. now i found a website called Strykeairsoft.com, I was wondering if anyone had any prior experiences with dealing with them? also I'm rather confused as to which mail courier I should be asking for if I do order from them...United States Postal Service, or United Parcel Service (they offer Worldwide Expedited, and Canada Standard)