American or any other non Canadian manufacturer of firearms just builds and ships the guns to Canada under the requested specs. Sometimes they mess up at the factory or even substitute a part without realizing the problems that result in Canada. This happens far more often than most people realize as we (dealers and distributers) don't go out of our way to publicly give this info out as we are trying to fly under the radar as much as possible. Dianne and I just went for supper last night with the Australian distributer for Leupold, Savage, Glock, HS Precision, Ruger, ATK among others. He advised that their government inspects every single box of every firearm imported into the country before handing it off to them to confirm compliance with Australian law. This obviously adds to the time lag and expense of bringing guns into their country and then handed down to the consumer. We (Canada) seldom have our gun boxes opened by Canada customs or any other agency other that occasional spot inspections. Phil.