So I recently ordered a refurbished Air Arms TX200 HC from Pyramid Air but when it arrived yesterday I was surprised to see that what I actually received was a standard TX200. I didn't bother calling Pyramid Air about it because what I really wanted was a refurbished TX200 MKIII anyway. My question is if there's a place I can find what the differences are that were that Air Arms changed from one mark to the next? The reason why I ask is because everyone that I've seen has the Air Arms logo carved on the bottom of the grip and mine doesn't. I also have one other question. Are all the TX200's sold here in the US the higher power FAC models. The label on the rifle bag I received says 'AA TX200 HC FAC'. Thanks in advance for any insight into my questions