According to Wiki, "The Canadian civilian version comes standard with the Mepro reflex sight and a slightly longer barrel to meet the Canadian requirement for non-restricted semi-automatic centerfire rifles to have a barrel length of at least 470 mm."
CA was the 9th largest economy in the world and has a larger GDP than Canada.
2011 CA GSP $ 1,958,904 MM
2011 Canada GDP $ 1,736,051 MM
Atlantic, can you convince IMI it's in their best financial interest to make a CA-length barrel, 510mm to be exact. OAL will be 30.3" for CA model.