If Medieval Nobles could purchase Assault Rifles?

Status
Closed
Aug 2016
977
US&A
I am playing with a fictional idea in my head. Essentially, if medieval Humans had established trade relations with some advanced alien race that, rather than conquer/anal-probe us, they were simply interested in making money. How might that work out for us?

What's particularly interesting is how warfare might evolve if a country could field just a few, less than ten, modern assault rifles. Assuming these were so expensive, only kings and a few incredibly-powerful nobles could afford them, how might warfare and society change?
 
Status
Closed